CVE-2026-77572 Information disclosure in VeraCrypt
Local attackers can exploit missing authorization in VeraCrypt driver IOCTLs to disclose disk topology, symlink targets, and device metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77572?
CVE-2026-77572 is a low-severity vulnerability in VeraCrypt, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-77572?
How do I fix CVE-2026-77572?
No fix has been published for CVE-2026-77572 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-77572 being exploited?
There is no known exploitation of CVE-2026-77572 in the wild and no public exploit code.
Sources
Also known as GHSA-9mgv-w2fw-3m78.