{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4892", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-03-26T13:09:48.958Z", "datePublished": "2026-05-11T16:47:58.846Z", "dateUpdated": "2026-05-11T19:58:06.568Z"}, "containers": {"cna": {"title": "CVE-2026-4892", "descriptions": [{"lang": "en", "value": "A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "dnsmasq", "product": "dnsmasq", "versions": [{"status": "affected", "version": "2.92rel2"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-122: Heap-based Buffer Overflow"}]}], "references": [{"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html"}, {"url": "https://www.kb.cert.org/vuls/id/471747"}, {"url": "https://thekelleys.org.uk/dnsmasq/CVE/"}, {"url": "https://github.com/NixOS/nixpkgs/pull/519082"}, {"url": "https://github.com/NixOS/nixpkgs/pull/519093"}, {"url": "https://github.com/pi-hole/FTL/releases/tag/v6.6.2"}], "x_generator": {"engine": "VINCE 3.0.39", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-4892"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-05-11T19:58:06.568Z"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-11T18:26:34.490142Z", "id": "CVE-2026-4892", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T18:26:37.898Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-4892", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-11T18:26:34.490142Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T18:25:52.978Z"}}], "cna": {"title": "CVE-2026-4892", "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "dnsmasq", "product": "dnsmasq", "versions": [{"status": "affected", "version": "2.92rel2"}]}], "references": [{"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html"}, {"url": "https://www.kb.cert.org/vuls/id/471747"}, {"url": "https://thekelleys.org.uk/dnsmasq/CVE/"}, {"url": "https://github.com/NixOS/nixpkgs/pull/519082"}, {"url": "https://github.com/NixOS/nixpkgs/pull/519093"}], "x_generator": {"env": "prod", "engine": "VINCE 3.0.39", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-4892"}, "descriptions": [{"lang": "en", "value": "A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-122: Heap-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-05-11T18:28:18.275Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4892", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:28:18.275Z", "dateReserved": "2026-03-26T13:09:48.958Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-05-11T16:47:58.846Z", "assignerShortName": "certcc"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet."}], "id": "CVE-2026-4892", "lastModified": "2026-05-11T21:19:02.783", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-05-11T18:16:41.483", "references": [{"source": "cret@cert.org", "url": "https://github.com/NixOS/nixpkgs/pull/519082"}, {"source": "cret@cert.org", "url": "https://github.com/NixOS/nixpkgs/pull/519093"}, {"source": "cret@cert.org", "url": "https://github.com/pi-hole/FTL/releases/tag/v6.6.2"}, {"source": "cret@cert.org", "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html"}, {"source": "cret@cert.org", "url": "https://thekelleys.org.uk/dnsmasq/CVE/"}, {"source": "cret@cert.org", "url": "https://www.kb.cert.org/vuls/id/471747"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Received"}

{}