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  4. CVE 2026 123269 libyal libvmdk descriptor file
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Back to active CVEs
Medium · CVSS 4.8CVE-2026-123269

libyal libvmdk Descriptor File libvmdk_descriptor_file.c libvmdk_descriptor_file_read_header out-of-boundsCVE-2026-123269

Answer in brief

CVE-2026-123269 records a Medium severity (CVSS 4.8) vulnerability in libyal libvmdk Descriptor File libvmdk_descriptor_file.c libvmdk_descriptor_file_read_header out-of-bounds. The current sources do not mark it as known exploited. The current feed maps libyal/libvmdk (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 Nov 6, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.8. 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 libyal/libvmdk (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
libyal/libvmdkgenericn/aNot reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for libyal/libvmdk.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 6, 2026

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

  2. Source modified

    Nov 6, 2026

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

  3. First seen by HOL

    Nov 6, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • libyal libvmdk Extent Data File libvmdk_extent_table.c libvmdk_extent_table_get_extent_data_file_path memory corruptionSame libyal/libvmdk package
  • FastNetMon: IPv6 Fragment header dereferenced without bounds check in shared packet parserAlso CWE-125
  • FastNetMon: Legacy pcap parse_packet() has no bounds checking, causing out-of-bounds read on truncated framesAlso CWE-125
  • FastNetMon: NetFlow v9 unbounded strlen() on interface-description field causes remote out-of-bounds readAlso CWE-125
  • FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds readAlso CWE-125

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125, CWE-119
Source
CVE List V5
Source checked
Nov 6, 2026
References
8 linked sources
Open source record