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  4. CVE 2026 77572 veracrypt missing authorization on veracryptsys
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Back to active CVEs
Low · CVSS 3.3CVE-2026-77572

VeraCrypt: Missing authorization on veracrypt.sys IOCTLs exposes disk topology, symlink targets, and DeviceObject reference count to any client of \\.\VeraCryptCVE-2026-77572

Answer in brief

CVE-2026-77572 records a Low severity (CVSS 3.3) vulnerability in VeraCrypt: Missing authorization on veracrypt.sys IOCTLs exposes disk topology, symlink targets, and DeviceObject reference count to any client of \\.\VeraCrypt. The current sources do not mark it as known exploited. The current feed maps veracrypt/VeraCrypt (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 3.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 3.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps veracrypt/VeraCrypt (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
veracrypt/VeraCryptgeneric<=1.26.29= 1.26.29

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for veracrypt/VeraCrypt.
  2. 2Review the reported fix. Update veracrypt/VeraCrypt to = 1.26.29 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Dpdk: dpdk: heap out-of-bounds read/write in gso header copySame generic ecosystem
  • Junos OS and Junos OS Evolved: An unprivileged local attacker causes denial of service or privilege escalationSame generic ecosystem
  • Junos OS and Junos OS Evolved: An attacker causes Denial of Service in eventdSame generic ecosystem
  • Junos OS: SRX Series: An attacker causes data-plane denial of service when chassis-cluster high availability is enabledSame generic ecosystem
  • Junos OS: SRX Series: An attacker causes data-plane denial of service when chassis-cluster high availability is usedSame generic ecosystem
  • Junos OS and Junos OS Evolved: SRX Series: An attacker causes a forwarding-plane outage when SVR vector routing is usedSame generic ecosystem

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-200
Source
CVE List V5
Source checked
Oct 14, 2026
References
3 linked sources
Open source record