TI-2026-54617 Aliases CVE-2026-78547 GHSA-cmf8-hqjg-89gj

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

LOW 19CWE-787Published 2026-09-11 · Updated 2026-09-11

Key facts

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

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

Summary

Out-of-bounds write vulnerability in Citrix Citrix Workspace app for Windows. This issue affects Citrix 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 0.00147 3rd percentileScored 2026-11-07

Fix Fixed Citrix Workspace app for Windows (Citrix): 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	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

Citrix 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

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:citrix:workspace::::::::	—	—	Citrix

cpe:2.3:a:citrix:workspace:*:*:*:*:*:*:*:* Versions — — ·Citrix

Remediation

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

Timeline

2026-10-02 Threatist record created from CVE-2026-78547
2026-10-03 Alias added: GHSA-cmf8-hqjg-89gj

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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences