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

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00+

Summaryinfo

A vulnerability marked as problematic has been reported in libyal libvmdk. Affected by this issue is the function libvmdk_descriptor_file_read_header of the file libvmdk/libvmdk_descriptor_file.c of the component Descriptor File Parser. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2026-123269. The attack needs to be launched locally. Furthermore, an exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in libyal libvmdk (the affected version is unknown). It has been declared as problematic. 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 with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-123269. The exploitation appears to be easy. Attacking locally is a requirement. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Applying the patch 175d3fc0a0b961f362f16e7560a6169d7213e16b is able to eliminate this problem. The bugfix is ready for download at github.com.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 175d3fc0a0b961f362f16e7560a6169d7213e16b

Timelineinfo

11/05/2026 Advisory disclosed
11/05/2026 +0 days VulDB entry created
11/05/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 41
Status: Confirmed

CNA: VulDB
CVE: CVE-2026-123269 (🔒)

GCVE (CVE): GCVE-0-2026-123269
GCVE (VulDB): GCVE-100-431575
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/05/2026 19:16
Changes: 11/05/2026 19:16 (59)
Complete: 🔍
Submitter: fczhang
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1032842: libyal (Joachim Metz) libvmdk 396e1873a030ac535bf919f6707d5be57613ae08` Memory corruption (by fczhang)

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