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CVE-2026-53565 is an improper privilege management vulnerability in Citrix Secure Access Client for Windows and Citrix Endpoint Analysis Client for Windows. It affects Secure Access Client for Windows versions prior to 26.6.1.20 and Endpoint Analysis Client for Windows versions prior to 26.5.1.7. The flaw allows a standard low-privileged local user on an affected Windows system to escalate privileges to SYSTEM. The issue is classified as CWE-269 and is described as requiring local access, low attack complexity, low privileges, and no user interaction.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A separate Citrix Secure Access Client for Windows vulnerability mentioned only for comparison and explicitly stated as unrelated to XenServer/XAPI.
A local privilege escalation vulnerability in Citrix Secure Access Client for Windows and Citrix Endpoint Analysis Client for Windows that allows a low-privileged local user to gain SYSTEM privileges.
A local privilege escalation vulnerability in Citrix Secure Access Client for Windows and Citrix Endpoint Analysis Client for Windows that allows a low-privileged user to gain SYSTEM privileges.
A Citrix vulnerability addressed in July 2026 affecting Citrix Secure Access Client for Windows and/or Citrix Endpoint Analysis Client for Windows; the specific flaw type is not described in the content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.