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5786 articles · 192433 vulns · 37/41 feeds (7d)
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CVE-2026-53566EXPLOITEDPATCHED
citrix · citrix secure access client for windows

Out-of-bounds memory read

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 Products

VendorProductVersions
citrixcitrix secure access client for windows0, 26.5.1.7

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
citrixsecure accesscert_advisory90%

References

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

Related News (4 articles)

Tier B
CCCS Canada33d ago
Citrix security advisory (AV26-702)
→ No new info (linked only)
Tier B
BSI Advisories33d ago
[NEU] [mittel] Citrix Systems Secure Access Client for Windows: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
CERT-FR33d ago
Multiples vulnérabilités dans les produits Citrix (15 juillet 2026)
→ No new info (linked only)
Tier C
VulDB34d ago
CVE-2026-53566 | Citrix Secure Access Client for Windows 26.5.1.7 out-of-bounds
→ No new info (linked only)
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
26.6.1.20
CWECWE-125
PublishedJul 14, 2026
Last enriched33d agov3
Trending Score1
Source articles4
Independent4
Info Completeness9/14
Missing: cvss, epss, kev, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-8452EXPKEV
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Trending: 122
NONECVE-2026-53565
Local Privilege escalation allows a low-privileged user to gain SYSTEM privileges
Trending: 1
HIGHCVE-2026-13474EXP
Denial of service via malformed HTTP/2 requests
CRITICALCVE-2026-8451EXPKEV
Insufficient input validation leading to memory overread
CRITICALCVE-2026-10816
Arbitrary File Read (Unauthenticated)

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jul 14, 2026
Discovered by ZDM
Jul 14, 2026
Actively Exploited
Jul 14, 2026
Exploit Available
Jul 14, 2026
Patch Available
Jul 14, 2026
Updated: affectedVersions, severity
Jul 14, 2026
Updated: exploitAvailable, activelyExploited
Jul 15, 2026

Version History

v3
Last enriched 33d ago
v3Tier B33d ago

Updated exploit availability to true, marked as actively exploited, and confirmed affected versions.

exploitAvailableactivelyExploited
via CCCS Canada
v2Tier C34d ago

Updated affected versions to include 26.5.1.7, changed severity to HIGH, and noted that no exploit is available.

affectedVersionsseverity
via VulDB
v134d ago

Initial creation