{"id":"CVE-2025-9817","summary":"NULL Pointer Dereference in Wireshark","details":"SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service","modified":"2026-08-12T03:30:43.028113315Z","published":"2025-09-03T07:38:58.940Z","related":["ALSA-2026:1714","SUSE-SU-2025:03294-1","SUSE-SU-2026:1169-1","SUSE-SU-2026:20222-1","openSUSE-SU-2025:15522-1","openSUSE-SU-2026:20151-1"],"database_specific":{"cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/9xxx/CVE-2025-9817.json","cna_assigner":"GitLab"},"references":[{"type":"WEB","url":"https://www.wireshark.org/security/wnpa-sec-2025-03.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/9xxx/CVE-2025-9817.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9817"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/issues/20642"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wireshark/wireshark","events":[{"introduced":"009a163470b581c7d3ee66d89c819cef1f9e50fe"},{"last_affected":"0d289c003bfb3e40b0480860b27e35a5b4e1b279"},{"introduced":"1c86fec5803374ecf08084c0c3f637e11c70291c"},{"last_affected":"1c86fec5803374ecf08084c0c3f637e11c70291c"}],"database_specific":{"cpe":["cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*","cpe:2.3:a:wireshark:wireshark:4.4.9:rc0:*:*:*:*:*:*"],"extracted_events":[{"introduced":"4.4.0"},{"last_affected":"4.4.8"},{"introduced":"4.4.9-rc0"},{"last_affected":"4.4.9-rc0"}],"source":["CPE_RANGE","CPE_STRING"]}},{"type":"GIT","repo":"https://gitlab.com/wireshark/wireshark","events":[{"introduced":"009a163470b581c7d3ee66d89c819cef1f9e50fe"},{"fixed":"57bf672140761a871aaad0f709fb7f7c32fd186b"}],"database_specific":{"extracted_events":[{"introduced":"4.4.0"},{"fixed":"4.4.9"}],"source":"AFFECTED_FIELD"}}],"versions":["4.4.9-rc0","v4.4.9rc0","wireshark-4.4.8","v4.4.8","v4.4.8rc0","wireshark-4.4.7","v4.4.7","v4.6.7rc0","v4.4.7rc0","wireshark-4.4.6","v4.4.6","v4.4.6rc0","wireshark-4.4.5","v4.4.5","v4.4.5rc0","wireshark-4.4.4","v4.4.4","v4.4.4rc0","wireshark-4.4.3","v4.4.3","v4.4.3rc0","wireshark-4.4.2","v4.4.2","v4.4.2rc0","wireshark-4.4.1","v4.4.1","v4.4.1rc0","wireshark-4.4.0","v4.4.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-9817.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}