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CVE-2026-53566

Out-of-bounds memory read

MEDIUM
6.8
CVSS Score
Published: July 14, 2026 at 01:12 PM UTC
Updated: October 24, 2026 at 09:10 PM UTC
1 product affected across 1 vendorSecure Access Client

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Secure Access Client· Citrix
90%
0 ≤ v < 26.6.1.200
Affected range stops below 26.6.1.20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696734

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMCitrix
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-125

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