{"id":"CVE-2025-38562","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-38562","generatedAt":"2026-11-02T14:55:39.591Z","title":"In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix null pointer dereference error in generate_encryptionkey\n\nIf client send two session setups with krb5 authenticate to ksmbd,\nnull pointer dereference error in generate_encryptionkey could happen.\nsess->Preauth_HashValue is set to NULL if session is valid.\nSo this patch skip generate encryption key if session is valid.","published":"2025-08-19T17:15:33.000Z","lastModified":"2026-06-17T09:17:07.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["linux/linux kernel","debian/debian linux"],"epss":{"score":0.11885,"percentile":0.96102,"date":"2026-11-01","history":[{"date":"2026-09-27","score":0.0945,"percentile":0.95262},{"date":"2026-10-19","score":0.11885,"percentile":0.96068}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-19T00:00:00.000Z","detail":{"to":0.11885,"from":0.09956,"percentile":0.96068},"summary":"EPSS moved from 10.0% to 11.9% probability of exploitation in the next thirty days."}],"references":[{"url":"https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/922f85e6e88fdea723a26854c3a6dcb4beb8d0b9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-917/","tags":["Mailing List","Third Party Advisory"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-38562","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."}