132 lines
5.3 KiB
JSON
132 lines
5.3 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-2026-55490",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-16T22:28:27.062Z",
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"datePublished": "2026-07-07T21:08:26.638Z",
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"dateUpdated": "2026-07-08T13:52:07.490Z"
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},
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"containers": {
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"cna": {
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"title": "OpenWrt: EAD Integer Underflow → Pre-Auth Denial of Service",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-191",
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"lang": "en",
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"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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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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"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": 6.5,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/openwrt/openwrt/security/advisories/GHSA-9558-77jp-g3fw",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/openwrt/openwrt/security/advisories/GHSA-9558-77jp-g3fw"
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},
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{
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"name": "https://github.com/openwrt/openwrt/commit/63c0767f3d02f7b10b0f0b5293366bd059a08ca5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/openwrt/openwrt/commit/63c0767f3d02f7b10b0f0b5293366bd059a08ca5"
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},
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{
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"name": "https://github.com/openwrt/openwrt/releases/tag/v25.12.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/openwrt/openwrt/releases/tag/v25.12.5"
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}
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],
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"affected": [
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{
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"vendor": "openwrt",
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"product": "openwrt",
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"versions": [
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{
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"version": "< 25.12.5",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-07-07T21:08:26.638Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "OpenWrt is a Linux operating system targeting embedded devices. Before v25.12.5, an integer underflow in handle_send_a() of the Emergency Access Daemon allows any unauthenticated attacker on the local network to crash the daemon by sending a single crafted UDP packet. The message length underflows before a bounds check and is then passed to memcpy as a very large size. This issue is fixed v25.12.5."
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}
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],
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"source": {
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"advisory": "GHSA-9558-77jp-g3fw",
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"discovery": "UNKNOWN"
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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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"timestamp": "2026-07-08T13:51:49.570163Z",
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"id": "CVE-2026-55490",
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"options": [
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{
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"Exploitation": "poc"
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-07-08T13:52:07.490Z"
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}
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}
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]
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}
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} |