SerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data integer overflow (CVE-2026-94030) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-94030

SerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data integer overflow

Answer in brief

CVE-2026-94030 records a Unknown severity vulnerability in SerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data integer overflow. The current sources do not mark it as known exploited. The current feed maps n/a/SerenityOS (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 Sep 20, 2026Updated Sep 20, 2026Source checked Sep 20, 2026First seen by HOL Sep 20, 2026Material review Sep 20, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 n/a/SerenityOS (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
n/a/SerenityOSgeneric	3d83e4509fd20d7438e1ae8470ffe668c136229c	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for n/a/SerenityOS.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 20, 2026

Sources and claim methodology

Upstream source description

A security vulnerability has been detected in SerenityOS up to 3d83e4509fd20d7438e1ae8470ffe668c136229c. Affected by this vulnerability is the function decode_bmp_pixel_data of the file Userland/Libraries/LibGfx/ImageFormats/BMPLoader.cpp of the component LibGfx. The manipulation of the argument height leads to integer overflow. The attack is possible to be carried out remotely. The attack's complexity is rated as high. The exploitation appears to be difficult. The exploit has been disclosed publicly and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The identifier of the patch is 007041bb2dd6d140c9e707caddfb0a49ecf96469. Applying a patch is the recommended action to fix this issue. This was reproducible with a minimal 55-byte PoC via the standard image-decode fuzz target but evidence for an actual exploitable defect is thin.

Quoted source text, attributed separately from HOL analysis.