TI-2026-54616 Aliases CVE-2026-78546 GHSA-gccg-q69r-mpxp

Out-of-bounds read in Citrix Workspace app for Windows

LOW 21CWE-125Published 2026-09-11 · Updated 2026-09-11

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Out-of-bounds read vulnerability in Citirx Workspace app for Windows. This issue affects Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00139 3rd percentileScored 2026-11-08

Fix Fixed Workspace app for Windows (Citirx): 2603.11 Current Release (CR), 2507.1 LTSR CU3, LTSR 2607

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Citrix	Workspace app for Windows	before 2603.11 Current Release (CR); before 2507.1 LTSR CU3; before LTSR 2607	2603.11 Current Release (CR), 2507.1 LTSR CU3, LTSR 2607	Patch available	CNA

Workspace app for Windows VendorCitrix Affected before 2603.11 Current Release (CR); before 2507.1 LTSR CU3; before LTSR 2607 Fixed in 2603.11 Current Release (CR), 2507.1 LTSR CU3, LTSR 2607 Patch available CNA

Remediation

Fix · CNA Workspace app for Windows (Citirx) Fixed in 2603.11 Current Release (CR), 2507.1 LTSR CU3, LTSR 2607

Timeline

2026-10-02 Threatist record created from CVE-2026-78546
2026-10-03 Alias added: GHSA-gccg-q69r-mpxp

References

Other 1

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697034&articleTitle=Citrix_Workspace_app_for_Windows_Security_Bulletin_CVE_2026_78546_and_CVE_2026_78547

TI-2026-60195 Memory overflow vulnerability leading to Remote Code Execution or Denial of Service KEVCVSS 4.0CRITICAL 9.5
TI-2026-60194 Improper input validation in Citrix ADC KEVCVSS 4.0CRITICAL 9.5
TI-2023-10110 Improper access control in Citrix ShareFile Storage Zones Controller KEVCVSS 3.1CRITICAL 9.8
TI-2023-04571 Unauthenticated sensitive information disclosure in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.4
TI-2023-03284 Unauthenticated remote code execution in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.8
TI-2022-10528 Unauthenticated remote arbitrary code execution in Citrix Gateway, Citrix ADC KEVCVSS 3.1CRITICAL 9.8

See all 418 →

Sources

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