{"id":"CVE-2026-18145","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-18145","generatedAt":"2026-10-28T03:59:14.807Z","title":"A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially…","description":"A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.","published":"2026-09-30T00:16:36.000Z","lastModified":"2026-10-08T19:48:39.000Z","status":"Analyzed","sourceIdentifier":"5d1c2695-1a31-4499-88ae-e847036fd7e3","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-121"],"affected":["watchguard/fireware"],"epss":{"score":0.00389,"percentile":0.32867,"date":"2026-10-27","history":[{"date":"2026-09-30","score":0.00342,"percentile":0.25236}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-30T00:16:36.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-09-30T00:16:36.003Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://psirt.watchguard.com/CVE-2026-18145","tags":["Patch","Vendor Advisory"],"source":"5d1c2695-1a31-4499-88ae-e847036fd7e3"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-18145","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}