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  4. CVE 2026 18794 openrgb insufficient input data checks lead to
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Back to active CVEs
High · CVSS 8.2CVE-2026-18794

OpenRGB: insufficient input data checks lead to Denial-of-Service, memory overread and overwriteCVE-2026-18794

Answer in brief

CVE-2026-18794 records a High severity (CVSS 8.2) vulnerability in OpenRGB: insufficient input data checks lead to Denial-of-Service, memory overread and overwrite. The current sources do not mark it as known exploited. The current feed maps CalcProgrammer1/OpenRGB (generic), CalcProgrammer1/OpenRGB (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 Aug 26, 2026Updated Sep 1, 2026Source checked Oct 10, 2026First seen by HOL Aug 26, 2026Material review Sep 1, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.2
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.2. 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 CalcProgrammer1/OpenRGB (generic), CalcProgrammer1/OpenRGB (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
CalcProgrammer1/OpenRGBgeneric>=0 <=1.0rc3Not reported
CalcProgrammer1/OpenRGBgeneric0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for CalcProgrammer1/OpenRGB, CalcProgrammer1/OpenRGB.
  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

    Aug 26, 2026

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

  2. Source modified

    Sep 1, 2026

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

  3. First seen by HOL

    Aug 26, 2026

Sources and claim methodology

  • Source referencebugzilla.suse.com
  • Source referencegitlab.com
Upstream source description

The OpenRGB network protocol allows attackers to cause memory exhaustion and out-of-bounds memory reads and writes by passing inconsistent data.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1288
Source
CVE List V5
Source checked
Oct 10, 2026
References
2 linked sources
Open source record