{"affected":[{"defaultStatus":"unaffected","platforms":["Default"],"product":"Fireware OS","source":"CNA: WatchGuard","vendor":"WatchGuard","versions":[{"lessThan":"2026.4","status":"affected","version":"2025.1","versionType":"custom"},{"lessThan":"12.12.4","status":"affected","version":"12.9","versionType":"custom"}]}],"cveId":"CVE-2026-113881","cwes":["CWE-121","CWE-129"],"description":"A stack-based buffer overflow vulnerability in Fireware OS's VPN Network Access Enforcement process allows an authenticated mobile VPN user to create a denial of service condition and potentially execute arbitrary code as an unprivileged process by sending a specially crafted request.","epss":{"date":"2026-11-04","percentile":0.29455,"score":0.00356},"exploits":[],"kev":null,"metrics":[{"score":6.1,"severity":"medium","source":"CNA: WatchGuard","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0"}],"modifiedAt":1793823977848,"publishedAt":1793116348229,"references":[{"source":"CNA: WatchGuard","tags":["vendor-advisory"],"url":"https://psirt.watchguard.com/CVE-2026-113881"}],"remediation":[{"kind":"fix","source":"CNA: WatchGuard","text":"Fireware OS 2026.4, Fireware OS 12.12.4"}],"revision":"df928aadd50589c904b5ba3a2272df6d924603891042fb7aee4ba207d79a0f5f","sources":[{"modifiedAt":1793823977848,"name":"CNA: WatchGuard","retrievedAt":1793826592660,"url":"https://www.cve.org/CVERecord?id=CVE-2026-113881"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793826618992,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-113881"}],"ssvc":{"assessedAt":1793817775500,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Fireware OS Stack Buffer Overflow in VPN Network Access Enforcement Allows Unprivileged Code Execution","updatedAt":1793826618992}