CVE-2026-123269

LOW 3.3

libyal libvmdk Descriptor File libvmdk_descriptor_file.c libvmdk_descriptor_file_read_header out-of-bounds

CVSS Score

3.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was detected in libyal libvmdk. Affected by this vulnerability is the function libvmdk_descriptor_file_read_header of the file libvmdk/libvmdk_descriptor_file.c of the component Descriptor File Parser. The manipulation results in out-of-bounds read. The attack must be initiated from a local position. The exploit is now public and may be used. The patch is identified as 175d3fc0a0b961f362f16e7560a6169d7213e16b. It is best practice to apply a patch to resolve this issue.

CWE	CWE-125 CWE-119
Vendor	libyal
Product	libvmdk
Published	Nov 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

libyal / libvmdk

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/431575 vuldb.com: https://vuldb.com/vuln/431575/cti vuldb.com: https://vuldb.com/cve/CVE-2026-123269 vuldb.com: https://vuldb.com/submit/1032842 github.com: https://github.com/libyal/libvmdk/issues/41 github.com: https://github.com/user-attachments/files/33394231/03_integer_underflow_poc.zip github.com: https://github.com/libyal/libvmdk/commit/175d3fc0a0b961f362f16e7560a6169d7213e16b github.com: https://github.com/libyal/libvmdk/

Credits

🔍 fczhang (VulDB User)