{"id":"CVE-2025-40601","published":"2025-11-20T12:26:54Z","modified":"2025-11-20T18:31:18Z","title":"A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to…","vendor":"SonicWall","product":"SonicOS","tier":"core","eol":null,"affectedVersions":[{"vendor":"SonicWall","product":"SonicOS","versions":["7.3.0-7012 and older versions","8.0.2-8011 and older versions"]}],"description":{"text":"A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.00914,"percentile":0.60025,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2026-02-05","exploitedFirstSeen":"2026-02-05","ransomware":false,"evidence":[{"url":"https://3354902.hs-sites.com/hubfs/Consulting/TTP%20Briefing/Q4%202025/Cybereason_TTP%20Briefing_%20Q42025.pdf","date":"2026-02-05"},{"url":"https://6288364.fs1.hubspotusercontent-na1.net/hubfs/6288364/Threat%20Intel%20Reports/Arete_Annual_Report%20_2025.pdf","date":"2026-05-10"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0016","tags":["vendor-advisory"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-198277","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-198277","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2025-11-20","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2025-40601","provenance":"source"},{"date":"2026-02-05","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://3354902.hs-sites.com/hubfs/Consulting/TTP%20Briefing/Q4%202025/Cybereason_TTP%20Briefing_%20Q42025.pdf","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":57.3,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":5.0,"detail":"added 267 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":12.0,"detail":"percentile 0.6002"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":5.25,"detail":"base score 7.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}