{"id":"CVE-2026-77178","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-77178","generatedAt":"2026-10-27T23:56:38.010Z","title":"Oracle VM VirtualBox before 7.2.8 allows guest OS users to cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.cpp in the PCNet (Am79C970A) network device model.","description":"Oracle VM VirtualBox before 7.2.8 allows guest OS users to cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.cpp in the PCNet (Am79C970A) network device model.","published":"2026-10-06T14:17:46.000Z","lastModified":"2026-10-06T18:16:56.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-787"],"affected":[],"epss":{"score":0.00335,"percentile":0.26613,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00339,"percentile":0.25227}]},"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 (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-06T19:30:04.000Z","detail":{"from":null,"score":"9.1","severity":"CRITICAL","fromSeverity":null},"summary":"Now scored CVSS 9.1 CRITICAL."},{"kind":"new","label":"New CVE","at":"2026-10-06T14:17:46.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-06T14:17:46.250Z"},"summary":"New CVE, critical severity (CVSS 9.1)."}],"references":[{"url":"https://gist.github.com/entropy1337/cd0d5b368445d20c43aca2590b313892","source":"cve@mitre.org"},{"url":"https://www.oracle.com/","source":"cve@mitre.org"},{"url":"https://www.virtualbox.org/wiki/Download_Old_Builds_7_0","source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77178","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."}