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TI-2026-38631 Aliases CVE-2026-53566GHSA-x6r5-jm3g-ghrx

Out-of-bounds memory read in Citrix Secure Access Client for Windows

Priority LOW 29CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

Out-of-bounds read vulnerability in Citrix Citrix Secure Access Client for Windows. This issue affects Citrix Secure Access Client for Windows: before 26.6.1.20.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix Fixed Citrix Secure Access Client for Windows (Citrix): 26.6.1.20

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CitrixCitrix Secure Access Client for Windowsbefore 26.6.1.2026.6.1.20Patch availableCNA
  • Citrix Secure Access Client for Windows VendorCitrix Affected before 26.6.1.20 Fixed in 26.6.1.20 Patch available CNA

Remediation

  • Fix · CNA Citrix Secure Access Client for Windows (Citrix) Fixed in 26.6.1.20

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53566
  2. 2026-10-03 Alias added: GHSA-x6r5-jm3g-ghrx

References

Other 1

  • TI-2026-60195 Memory overflow vulnerability leading to Remote Code Execution or Denial of Service KEVCVSS 4.0CRITICAL 9.5
  • TI-2026-60194 Improper input validation in Citrix ADC KEVCVSS 4.0CRITICAL 9.5
  • TI-2023-10110 Improper access control in Citrix ShareFile Storage Zones Controller KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04571 Unauthenticated sensitive information disclosure in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.4
  • TI-2023-03284 Unauthenticated remote code execution in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-10528 Unauthenticated remote arbitrary code execution in Citrix Gateway, Citrix ADC KEVCVSS 3.1CRITICAL 9.8
See all 418 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences