{"id":"CVE-2026-80735","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-80735","generatedAt":"2026-10-28T09:26:56.791Z","title":"In the Linux kernel, the following vulnerability has been resolved: ovpn: ensure socket is owned by ovpn before deref sk_user_data Some subsystems, like BPF SOCKMAP, set sk_user_data without actually setting the encap_type.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\novpn: ensure socket is owned by ovpn before deref sk_user_data\n\nSome subsystems, like BPF SOCKMAP, set sk_user_data without\nactually setting the encap_type.\n\nFor this reason, we must make sure that the type is the\none ovpn expects before dereferencing sk_user_data.\n\nFailing to do so may lead to out-of-bounds reads.","published":"2026-09-03T13:06:12.000Z","lastModified":"2026-09-04T05:17:14.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.3,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},"cwe":[],"affected":[],"epss":{"score":0.00169,"percentile":0.06219,"date":"2026-10-27","history":[]},"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 (0.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/43a31142e1d22b3cf5490bd94a94db7196901734","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/59aed1eb60d70678a53acccb0cb337a26ce6680e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/61fb3cca40ff938671474f4a16adb908c19032d7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80735","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."}