{"id":"CVE-2026-77572","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.","aliases":["GHSA-9mgv-w2fw-3m78"],"modified":"2026-10-15T02:47:41.275947714Z","published":"2026-10-14T15:26:31.329Z","database_specific":{"cwe_ids":["CWE-200"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77572.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77572.json"},{"type":"FIX","url":"https://github.com/veracrypt/VeraCrypt/commit/ca35405421df549e75f1f241259bdda0c5b67d40"},{"type":"WEB","url":"https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29"},{"type":"ADVISORY","url":"https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-9mgv-w2fw-3m78"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77572"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/veracrypt/veracrypt","events":[{"introduced":"0"},{"last_affected":"d26216c294fdfb090ee856f6195c294176defa1d"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.26.29"}],"source":"AFFECTED_FIELD"}}],"versions":["VeraCrypt_1.26.29","VeraCrypt_1.26.28_Beta4","VeraCrypt_1.26.28_Beta3","VeraCrypt_1.26.28_Beta2","VeraCrypt_1.26.28_Beta","VeraCrypt_1.26.24","VeraCrypt_1.26.20","VeraCrypt_1.26.19","VeraCrypt_1.26.18","VeraCrypt_1.26.15","VeraCrypt_1.26.14","VeraCrypt_1.25.9","VeraCrypt_1.26.7","VeraCrypt_1.26.6","VeraCrypt_1.25.7","VeraCrypt_1.25.4","VeraCrypt_1.24-Update8_MacOSX","VeraCrypt_1.24-Update7","VeraCrypt_1.24-Update6","VeraCrypt_1.24-Update5","VeraCrypt_1.24-Update4","VeraCrypt_1.24-Update3","VeraCrypt_1.24-Update2","VeraCrypt_1.24-Hotfix1","VeraCrypt_1.24","VeraCrypt_1.23","VeraCrypt_1.22","VeraCrypt_1.21","VeraCrypt_1.20","VeraCrypt_1.19","VeraCrypt_1.18a","VeraCrypt_1.18","VeraCrypt_1.18_PreRelease","VeraCrypt_1.17","VeraCrypt_1.16","VeraCrypt_1.15","VeraCrypt_1.14","VeraCrypt_1.13","VeraCrypt_1.12","VeraCrypt_1.0f-2","VeraCrypt_1.0f-1","VeraCrypt_1.0f","VeraCrypt_1.0f-BETA3","VeraCrypt_1.0f-BETA2","VeraCrypt_MacOSX_1.0f-BETA","VeraCrypt_Linux_1.0f-BETA","VeraCrypt_1.0f-BETA","VeraCrypt_MacOSX_1.0e","VeraCrypt_Linux_1.0e","VeraCrypt_1.0e","VeraCrypt_MacOSX_1.0d","VeraCrypt_Linux_1.0d","VeraCrypt_1.0d","VeraCrypt_1.0c","VeraCrypt_1.0b","VeraCrypt_1.0a"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77572.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}