{"schema":"threatline.record/2","record":{"id":"CVE-2026-77572","aliases":["GHSA-9mgv-w2fw-3m78"],"summary":"VeraCrypt: Missing authorization on veracrypt.sys IOCTLs exposes disk topology, symlink targets, and DeviceObject reference count to any client of \\\\.\\VeraCrypt","details":"VeraCrypt provides disk encryption with strong security based on TrueCrypt. In 1.26.29 and earlier, selected metadata IOCTL handlers in the VeraCrypt Windows veracrypt.sys driver accept caller-supplied object-manager and device paths broader than supported VeraCrypt workflows require. A local user who can open the intentionally user-accessible \\.\\VeraCrypt device can use TC_IOCTL_GET_RESOLVED_SYMLINK, TC_IOCTL_GET_DRIVE_PARTITION_INFO, VC_IOCTL_GET_DRIVE_GEOMETRY_EX, or the legacy TC_IOCTL_GET_DRIVE_GEOMETRY handler to make src/Driver/Ntdriver.c perform kernel-context symbolic-link or disk-device lookups outside the intended path scope. This can disclose low-sensitivity drive-letter targets, partition information, disk geometry, GPT or MBR state, and limited object-manager path metadata.","categories":["Unclassified"],"product":"VeraCrypt","vendor":"veracrypt","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-77572","source_modified_at":"2026-10-15T15:08:14.109Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"VeraCrypt","vendor":"veracrypt","versions":[{"version":"<= 1.26.29","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":3.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00096,"percentile":0.00674,"score_date":"2026-10-23"},"published_at":"2026-10-14T15:26:31.329Z","modified_at":"2026-10-15T15:08:14.109Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-77572","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T15:08:14.109Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-77572","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-9mgv-w2fw-3m78","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/veracrypt/VeraCrypt/commit/ca35405421df549e75f1f241259bdda0c5b67d40","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T16:11:26.847830Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T15:08:14.109Z","content_hash":"c67b856c5ad07a2d609d502c438e2d5c673846287cedbc07f6ff02910f4e9cd6"}}