{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-96423", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-09-23T05:42:00.660Z", "datePublished": "2026-09-29T09:30:38.019Z", "dateUpdated": "2026-10-14T03:57:43.076Z" }, "containers": { "cna": { "title": "Heap-based Buffer Overflow in Wireshark", "descriptions": [ { "lang": "en", "value": "X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service" } ], "affected": [ { "vendor": "Wireshark Foundation", "product": "Wireshark", "repo": "https://gitlab.com/wireshark/wireshark", "versions": [ { "version": "4.6.0", "status": "affected", "lessThan": "4.6.9", "versionType": "semver" }, { "version": "4.4.0", "status": "affected", "lessThan": "4.4.19", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "cweId": "CWE-122", "type": "CWE" } ] } ], "references": [ { "url": "https://www.wireshark.org/security/wnpa-sec-2026-108.html" }, { "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21563" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM" } } ], "solutions": [ { "lang": "en", "value": "Upgrade to version 4.6.9 or above" } ], "credits": [ { "lang": "en", "value": "Claude and Ada Logics", "type": "finder" } ], "providerMetadata": { "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-09-29T09:30:38.019Z" } }, "adp": [ { "references": [ { "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21563", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-09T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-96423" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T03:57:43.076Z" } } ] } }