CVE-2026-84420
Out-of-Bounds Write and Out-of-Bounds Read
Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Out-of-Bounds Write and Out-of-Bounds Read
Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.
- Record
CVE-2026-84420- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-125, CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-100752
Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.
- Record
EUVD-2026-100752- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-48h6-7293-hxh6
Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows. This issue affects...
Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.
- Record
GHSA-48h6-7293-hxh6- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/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 Citirx Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.
- Record
CVE-2026-84420- CVSS 4.0
- 5.8 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/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
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-84420 is a medium vulnerability (CVSS 5.8) in Citirx Citrix Workspace App For Windows, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.