350 lines
14 KiB
JSON
350 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-20048",
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"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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"state": "PUBLISHED",
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"assignerShortName": "cisco",
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"dateReserved": "2025-10-08T11:59:15.355Z",
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"datePublished": "2026-02-25T16:26:28.329Z",
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"dateUpdated": "2026-02-25T19:05:48.366Z"
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},
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"containers": {
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"cna": {
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"title": "Cisco NX-OS Software SNMP Denial of Service Vulnerability",
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"metrics": [
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{
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"format": "cvssV3_1",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
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"baseScore": 7.7,
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"baseSeverity": "HIGH",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH"
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}
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to improper processing when parsing SNMP requests. An attacker could exploit this vulnerability by continuously sending SNMP queries to a specific MIB of an affected device. A successful exploit could allow the attacker to cause a kernel panic on the device, resulting in a reload and a DoS condition.\r\nNote: This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv1 or SNMPv2c, the attacker must have a valid read-only SNMP community string for the affected system. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system."
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}
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],
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"references": [
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{
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"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dsnmp-cNN39Uh",
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"name": "cisco-sa-nxos-dsnmp-cNN39Uh"
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}
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],
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"exploits": [
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{
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"lang": "en",
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"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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}
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],
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"source": {
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"advisory": "cisco-sa-nxos-dsnmp-cNN39Uh",
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"discovery": "EXTERNAL",
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"defects": [
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"CSCwq57598"
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]
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},
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Uncontrolled Memory Allocation",
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"type": "cwe",
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"cweId": "CWE-789"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "Cisco",
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"product": "Cisco NX-OS System Software in ACI Mode",
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"versions": [
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{
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"version": "15.2(1g)",
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"status": "affected"
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},
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{
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"version": "15.2(2e)",
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"status": "affected"
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},
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{
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"version": "15.2(2f)",
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"status": "affected"
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},
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{
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"version": "15.2(2g)",
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"status": "affected"
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},
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{
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"version": "15.2(2h)",
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"status": "affected"
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},
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{
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"version": "15.2(3f)",
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"status": "affected"
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},
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{
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"version": "15.2(3e)",
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"status": "affected"
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},
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{
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"version": "15.2(3g)",
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"status": "affected"
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},
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{
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"version": "15.2(4d)",
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"status": "affected"
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},
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{
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"version": "15.2(4e)",
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"status": "affected"
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},
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{
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"version": "15.2(5c)",
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"status": "affected"
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},
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{
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"version": "15.2(5d)",
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"status": "affected"
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},
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{
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"version": "16.0(1g)",
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"status": "affected"
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},
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{
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"version": "15.2(5e)",
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"status": "affected"
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},
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{
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"version": "15.2(4f)",
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"status": "affected"
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},
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{
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"version": "15.2(6e)",
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"status": "affected"
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},
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{
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"version": "15.2(6h)",
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"status": "affected"
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},
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{
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"version": "16.0(1j)",
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"status": "affected"
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},
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{
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"version": "15.2(6g)",
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"status": "affected"
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},
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{
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"version": "15.2(7f)",
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"status": "affected"
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},
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{
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"version": "15.2(7g)",
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"status": "affected"
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},
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{
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"version": "16.0(2h)",
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"status": "affected"
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},
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{
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"version": "15.2(8d)",
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"status": "affected"
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},
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{
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"version": "16.0(2j)",
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"status": "affected"
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},
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{
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"version": "15.2(8e)",
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"status": "affected"
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},
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{
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"version": "16.0(3d)",
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"status": "affected"
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},
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{
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"version": "16.0(3e)",
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"status": "affected"
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},
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{
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"version": "15.2(8f)",
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"status": "affected"
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},
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{
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"version": "15.2(8g)",
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"status": "affected"
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},
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{
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"version": "15.3(1d)",
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"status": "affected"
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},
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{
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"version": "15.2(8h)",
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"status": "affected"
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},
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{
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"version": "16.0(4c)",
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"status": "affected"
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},
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{
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"version": "15.3(2a)",
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"status": "affected"
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},
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{
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"version": "15.2(8i)",
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"status": "affected"
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},
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{
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"version": "16.0(5h)",
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"status": "affected"
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},
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{
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"version": "15.3(2b)",
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"status": "affected"
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},
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{
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"version": "16.0(3g)",
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"status": "affected"
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},
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{
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"version": "16.0(5j)",
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"status": "affected"
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},
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{
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"version": "15.3(2c)",
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"status": "affected"
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},
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{
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"version": "16.0(6c)",
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"status": "affected"
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},
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{
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"version": "15.3(2d)",
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"status": "affected"
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},
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{
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"version": "16.1(1f)",
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"status": "affected"
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},
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{
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"version": "16.0(7e)",
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"status": "affected"
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},
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{
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"version": "16.0(8e)",
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"status": "affected"
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},
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{
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"version": "15.3(2e)",
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"status": "affected"
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},
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{
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"version": "16.0(8f)",
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"status": "affected"
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},
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{
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"version": "16.1(2f)",
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"status": "affected"
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},
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{
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"version": "16.1(2g)",
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"status": "affected"
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},
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{
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"version": "15.3(2f)",
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"status": "affected"
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},
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{
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"version": "16.0(9c)",
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"status": "affected"
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},
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{
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"version": "16.1(3f)",
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"status": "affected"
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},
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{
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"version": "16.0(9d)",
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"status": "affected"
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},
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{
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"version": "16.0(6h)",
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"status": "affected"
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},
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{
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"version": "16.0(8h)",
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"status": "affected"
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},
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{
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"version": "16.1(3g)",
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"status": "affected"
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},
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{
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"version": "16.0(9e)",
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"status": "affected"
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},
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{
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"version": "16.1(4h)",
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"status": "affected"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"providerMetadata": {
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"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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"shortName": "cisco",
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"dateUpdated": "2026-02-25T16:26:28.329Z"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-20048",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-02-25T18:18:11.351419Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-02-25T19:05:48.366Z"
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}
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}
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]
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}
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} |