{"id":"CVE-2026-53369","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53369","generatedAt":"2026-10-28T01:48:10.846Z","title":"In the Linux kernel, the following vulnerability has been resolved: udf: reject descriptors with oversized CRC length udf_read_tagged() skips CRC verification when descCRCLength + sizeof(struct tag) exceeds the block size.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nudf: reject descriptors with oversized CRC length\n\nudf_read_tagged() skips CRC verification when descCRCLength +\nsizeof(struct tag) exceeds the block size.  A crafted UDF image can\nset descCRCLength to an oversized value to bypass CRC validation\nentirely; the descriptor is then accepted based solely on the 8-bit\ntag checksum, which is trivially recomputable.\n\nReject such descriptors instead of silently accepting them.  A\nlegitimate single-block descriptor should never have a CRC length that\nexceeds the block.","published":"2026-07-19T09:17:02.000Z","lastModified":"2026-10-19T20:19:17.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":8.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":["linux/linux kernel"],"epss":{"score":0.0019,"percentile":0.0861,"date":"2026-10-26","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 (0.19%). 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/1873eb81c65d3f849418d7386baa39c439c9fc38","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53369","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."}