{"id":"CVE-2025-9817","title":"SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service","summary":"SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-476"],"vendor":"wireshark","product":"wireshark","affected":["wireshark >= 4.4.0, <= 4.4.8","wireshark = 4.4.9"],"published":"2025-09-03","updated":"2026-09-26","sourceUpdated":"2026-09-26T00:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-9817","references":[{"url":"https://gitlab.com/wireshark/wireshark/-/issues/20642","label":"cve@gitlab.com"},{"url":"https://www.wireshark.org/security/wnpa-sec-2025-03.html","label":"cve@gitlab.com"}],"tags":["nvd"],"epss":0.00208,"epssPercentile":0.09688,"ingestedAt":"2026-09-26T00:22:39.907Z","slug":"CVE-2025-9817","body":"## Overview\n\nSSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service\n\n## Affected\n\n- `wireshark >= 4.4.0, <= 4.4.8`\n- `wireshark = 4.4.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}