{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-9054", "assignerOrgId": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9", "state": "PUBLISHED", "assignerShortName": "9front", "dateReserved": "2026-05-19T21:39:27.357Z", "datePublished": "2026-05-22T03:21:49.646Z", "dateUpdated": "2026-05-22T17:15:48.984Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9", "shortName": "9front", "dateUpdated": "2026-05-22T17:15:48.984Z" }, "title": "Invalid IP packets cause a kernel panic", "datePublic": "2026-05-19T21:50:00.000Z", "affected": [ { "vendor": "9front", "product": "9front", "platforms": [ "x86", "ARM", "64 bit", "32 bit" ], "packageName": "kernel", "repo": "https://git.9front.org/plan9front/9front/HEAD/info.html", "modules": [ "networking stack" ], "programFiles": [ "/sys/src/9/ip/il.c", "/sys/src/9/ip/rudp.c", "/sys/src/9/ip/udp.c", "/sys/src/9/ip/gre.c", "/sys/src/9/ip/tcp.c", "/sys/src/9/port/qio.c" ], "programRoutines": [ { "name": "udpiput()" }, { "name": "tcpiput()" }, { "name": "rdpiput()" }, { "name": "ilpullup()" }, { "name": "greiput()" }, { "name": "trimblock()" } ], "versions": [ { "status": "affected", "version": "863431cff8b47fa20625f4cbee3ea4e92367b152", "lessThan": "70c97c334171c715df82774d1a47638abaca2db4", "versionType": "git" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic." } ] } ], "references": [ { "url": "https://git.9front.org/plan9front/9front/7838d68969549f938cc8e80c0c2b4218cb12805c/commit.html", "tags": [ "mitigation" ] }, { "url": "https://git.9front.org/plan9front/9front/f86917b75e9562f90545b7e484dbdcd748236952/commit.html", "tags": [ "mitigation" ] }, { "url": "https://git.9front.org/plan9front/9front/70c97c334171c715df82774d1a47638abaca2db4/commit.html", "tags": [ "mitigation" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "ATTACKED", "Safety": "NOT_DEFINED", "Automatable": "YES", "Recovery": "AUTOMATIC", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.2, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:A/AU:Y/R:A" } } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.2" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-130", "lang": "en", "description": "CWE-130 Improper Handling of Length Parameter Inconsistency" } ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-22T16:11:35.411313Z", "id": "CVE-2026-9054", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-22T16:12:40.142Z" } } ] } }