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Back to active CVEs
Medium · CVSS 6.9CVE-2026-53563

Persistent Command ExecutionCVE-2026-53563

Answer in brief

CVE-2026-53563 records a Medium severity (CVSS 6.9) vulnerability in Persistent Command Execution. The current sources do not mark it as known exploited. The current feed maps Citrix/UniconOS (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 Oct 13, 2026Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.9. 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 Citrix/UniconOS (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Citrix/UniconOSgeneric>=0 <2607.2 CR || >=0 <2603 LTSR CU22607.2 CR, 2603 LTSR CU2, 2607.2, 2603

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Citrix/UniconOS.
  2. 2Review the reported fix. Update Citrix/UniconOS to 2607.2 CR if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 13, 2026

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

  2. Source modified

    Oct 13, 2026

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

  3. First seen by HOL

    Oct 13, 2026

Sources and claim methodology

  • Source referencesupport.citrix.com
Upstream source description

Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Arbitrary file read and writeSame citrix/uniconos package
  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Certificate Validation (CWE-295)Same generic ecosystem
  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 13, 2026
References
1 linked source
Open source record