{"id":"CVE-2025-11964","state":"PUBLISHED","title":"OOBW in utf_16le_to_utf_8_truncated() in libpcap","description":"On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.","publishedAt":"2025-12-31T00:58:19.026Z","updatedAt":"2026-01-02T14:38:10.106Z","severity":{"score":1.9,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N","source":"Tcpdump"},"assigner":"Tcpdump","products":["The Tcpdump Group libpcap"],"affected":[{"vendor":"The Tcpdump Group","product":"libpcap","defaultStatus":"unaffected","versions":[{"version":"1.10.0","status":"affected","lessThan":"1.10.6","versionType":"semver"}],"programFiles":["fmtutils.c"],"programRoutines":[{"name":"utf_16le_to_utf_8_truncated()"}],"repo":"https://github.com/the-tcpdump-group/libpcap/"}],"references":["https://github.com/the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/11xxx/CVE-2025-11964.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-11964","state":"PUBLISHED","datePublished":"2025-12-31T00:58:19.026Z","dateUpdated":"2026-01-02T14:38:10.106Z","assignerShortName":"Tcpdump","assignerOrgId":"cfdbb673-b408-4d03-89c1-c3d73ed80896","dateReserved":"2025-10-20T14:43:15.180Z"},"containers":{"cna":{"title":"OOBW in utf_16le_to_utf_8_truncated() in libpcap","descriptions":[{"lang":"en","value":"On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer."}],"affected":[{"vendor":"The Tcpdump Group","product":"libpcap","defaultStatus":"unaffected","versions":[{"version":"1.10.0","status":"affected","lessThan":"1.10.6","versionType":"semver"}],"programFiles":["fmtutils.c"],"programRoutines":[{"name":"utf_16le_to_utf_8_truncated()"}],"repo":"https://github.com/the-tcpdump-group/libpcap/"}],"references":[{"url":"https://github.com/the-tcpdump-group/libpcap/commit/7fabf607f2319a36a0bd78444247180acb838e69","tags":["patch"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":1.9,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Tcpdump","orgId":"cfdbb673-b408-4d03-89c1-c3d73ed80896","dateUpdated":"2025-12-31T00:58:19.026Z"},"credits":[{"lang":"en","type":"reporter","value":"Aniruddhan Murali"},{"lang":"en","type":"reporter","value":"Noble Saji Mathews"},{"lang":"en","type":"reporter","value":"Mahmoud Alfadel"},{"lang":"en","type":"reporter","value":"Mei Nagappan"},{"lang":"en","type":"reporter","value":"Meng Xu"}],"solutions":[{"lang":"en","value":"libpcap 1.10.6 includes a fix for this bug."}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-02T14:23:03.611964Z","id":"CVE-2025-11964","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-02T14:38:10.106Z"}}]}}}