{"api_version":"1","generated_at":"2026-07-24T19:50:10+00:00","cve":"CVE-2026-53369","urls":{"html":"https://cve.report/CVE-2026-53369","api":"https://cve.report/api/cve/CVE-2026-53369.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53369","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53369"},"summary":{"title":"udf: reject descriptors with oversized CRC length","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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 09:17:02","updated_at":"2026-07-20 15:16:40"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","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","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","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","data":{"baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7","name":"https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6","name":"https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98","name":"https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99","name":"https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1873eb81c65d3f849418d7386baa39c439c9fc38","name":"https://git.kernel.org/stable/c/1873eb81c65d3f849418d7386baa39c439c9fc38","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2","name":"https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22","name":"https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770","name":"https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53369","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53369","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 832ab4a882dc9b3c0155490d9993642ef545fd22 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 7d1b6adbf90df6c8941090d5646fbeca25ba9770 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 3dede76d525919bb966f9213e131af685de5ff99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53369","cve":"CVE-2026-53369","epss":"0.001860000","percentile":"0.084150000","score_date":"2026-07-20","updated_at":"2026-07-21 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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."}],"metrics":[{"cvssV3_1":{"baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-20T13:39:41.882Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22"},{"url":"https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770"},{"url":"https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99"},{"url":"https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6"},{"url":"https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98"},{"url":"https://git.kernel.org/stable/c/1873eb81c65d3f849418d7386baa39c439c9fc38"},{"url":"https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2"},{"url":"https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7"}],"title":"udf: reject descriptors with oversized CRC length","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53369","datePublished":"2026-07-19T09:10:30.283Z","dateReserved":"2026-06-09T07:44:35.401Z","dateUpdated":"2026-07-20T13:39:41.882Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 09:17:02","lastModifiedDate":"2026-07-20 15:16:40","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.5,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53369","Ordinal":"1","Title":"udf: reject descriptors with oversized CRC length","CVE":"CVE-2026-53369","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53369","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"udf: reject descriptors with oversized CRC length"}]}}}