CVE-2026-53566
Out-of-bounds memory read
CVE-2026-53566 is a medium vulnerability (CVSS 6.8) in Citrix Secure Access Client For Windows, published July 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Out-of-bounds memory read
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.
- Record
CVE-2026-53566- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-43676
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.
- Record
EUVD-2026-43676- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x6r5-jm3g-ghrx
Out-of-bounds read vulnerability in Citrix Citrix Secure Access Client for Windows. This issue...
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.
- Record
GHSA-x6r5-jm3g-ghrx- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-53566- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-125
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD |