Metadata disclosure via overbroad driver path lookups
Published Oct 14, 2026 · Updated Oct 14, 2026
Metadata disclosure in VeraCrypt 1.26.29 and earlier on Windows allows local users to read disk topology via driver IOCTLs. Selected metadata handlers in src/Driver/Ntdriver.c resolve caller-supplied symbolic-link and disk-device paths in kernel context without restricting them to supported workflow paths. Access requires opening the intentionally user-accessible VeraCrypt device; disclosure covers limited partition, geometry, and path metadata, not passwords, encryption keys, or file contents.
Summary
What happened
Metadata disclosure in VeraCrypt 1.26.29 and earlier on Windows allows local users to read disk topology via driver IOCTLs. Selected metadata handlers in src/Driver/Ntdriver.c resolve caller-supplied symbolic-link and disk-device paths in kernel context without restricting them to supported workflow paths. Access requires opening the intentionally user-accessible VeraCrypt device; disclosure covers limited partition, geometry, and path metadata, not passwords, encryption keys, or file contents.
The record
- CVE
- CVE-2026-77572
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Vendor
- AM Crypto
- Product
- VeraCrypt
- Classifications
- CWE-200, T1082
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 14, 2026CVE publishedPublication date reported by the CVE source.
- Oct 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=<= 1.26.29
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
- Upstream metadata-disclosure proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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