259 lines
11 KiB
JSON
259 lines
11 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-2026-33797",
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"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"state": "PUBLISHED",
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"assignerShortName": "juniper",
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"dateReserved": "2026-03-23T19:46:13.673Z",
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"datePublished": "2026-04-09T21:31:22.902Z",
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"dateUpdated": "2026-04-23T20:08:35.655Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "Junos OS",
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"vendor": "Juniper Networks",
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"versions": [
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{
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"lessThan": "25.2R2",
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"status": "affected",
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"version": "25.2",
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"versionType": "semver"
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},
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{
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"lessThan": "25.2R1",
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"status": "unaffected",
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"version": "0",
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"versionType": "semver"
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}
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]
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},
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{
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"defaultStatus": "unaffected",
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"modules": [
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"bgp"
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],
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"product": "Junos OS Evolved",
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"vendor": "Juniper Networks",
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"versions": [
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{
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"lessThan": "25.2R2-EVO",
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"status": "affected",
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"version": "25.2",
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"versionType": "semver"
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},
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{
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"lessThan": "25.2R1-EVO",
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"status": "unaffected",
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"version": "0",
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"versionType": "semver"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<tt> [ protocols bgp group <group> neighbor ]</tt><br>"
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}
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],
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"value": "[ protocols bgp group <group> neighbor ]"
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}
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],
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"datePublic": "2026-04-08T16:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker, sending a specific genuine BGP packet in an already established BGP session to reset only that session causing a Denial of Service (DoS).<br><br>An attacker repeatedly sending the packet will sustain the Denial of Service (DoS).<p>This issue affects Junos OS:</p><ul><li>25.2 versions before 25.2R2</li></ul>This issue does not affect Junos OS versions before 25.2R1.<br><br>This issue affects Junos OS Evolved: <br><ul><li>25.2-EVO versions before 25.2R2-EVO</li></ul>This issue does not affect Junos OS Evolved versions before 25.2R1-EVO.<br><br>eBGP and iBGP are affected.<br>IPv4 and IPv6 are affected. <br>"
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}
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],
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"value": "An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker, sending a specific genuine BGP packet in an already established BGP session to reset only that session causing a Denial of Service (DoS).\n\nAn attacker repeatedly sending the packet will sustain the Denial of Service (DoS).This issue affects Junos OS:\n\n * 25.2 versions before 25.2R2\n\n\nThis issue does not affect Junos OS versions before 25.2R1.\n\nThis issue affects Junos OS Evolved: \n * 25.2-EVO versions before 25.2R2-EVO\n\n\nThis issue does not affect Junos OS Evolved versions before 25.2R1-EVO.\n\neBGP and iBGP are affected.\nIPv4 and IPv6 are affected."
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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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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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}
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],
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.4,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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},
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{
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"cvssV4_0": {
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"Automatable": "YES",
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"Recovery": "AUTOMATIC",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "ADJACENT",
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"baseScore": 7.1,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"providerUrgency": "GREEN",
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"subAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "CONCENTRATED",
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"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M/U:Green",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "MODERATE"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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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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"cweId": "CWE-20",
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"description": "CWE-20 Improper Input Validation",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"shortName": "juniper",
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"dateUpdated": "2026-04-23T20:08:35.655Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://kb.juniper.net/JSA107850"
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},
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://supportportal.juniper.net/JSA107850"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "The following software releases have been updated to resolve this specific issue:<br>Junos OS: 25.2R2, 25.4R1, and all subsequent releases.<br>Junos OS Evolved: 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases."
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}
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],
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"value": "The following software releases have been updated to resolve this specific issue:\nJunos OS: 25.2R2, 25.4R1, and all subsequent releases.\nJunos OS Evolved: 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases."
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}
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],
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"source": {
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"advisory": "JSA107850",
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"defect": [
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"1893316"
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],
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"discovery": "INTERNAL"
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},
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"title": "Junos OS and Junos OS Evolved: An attacker sending a specific genuine BGP packet causes a BGP reset",
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"workarounds": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "There are no known workarounds for this issue.<br>"
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}
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],
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"value": "There are no known workarounds for this issue."
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}
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],
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"x_generator": {
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"engine": "Vulnogram 0.1.0-dev"
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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-2026-33797",
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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": "2026-04-13T17:40:25.675431Z"
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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": "2026-04-13T18:06:19.434Z"
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}
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}
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]
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}
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} |