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Back to active CVEs
Medium · CVSS 4.4CVE-2026-78547

Out-of-Bounds WriteCVE-2026-78547

Answer in brief

CVE-2026-78547 records a Medium severity (CVSS 4.4) vulnerability in Out-of-Bounds Write. The current sources do not mark it as known exploited. The current feed maps Citrix/Citrix Workspace app for Windows (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 16, 2026Source checked Oct 27, 2026First seen by HOL Sep 11, 2026Material review Sep 16, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 4.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Citrix/Citrix Workspace app for Windows (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Citrix/Citrix Workspace app for Windowsgeneric>=0 <2603.11 Current Release (CR) || >=0 <2507.1 LTSR CU3 || >=0 <LTSR 26072603.11 Current Release (CR), 2507.1 LTSR CU3, LTSR 2607, 2603.11, 2507.1, LTSR

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Citrix/Citrix Workspace app for Windows.
  2. 2Review the reported fix. Update Citrix/Citrix Workspace app for Windows to 2603.11 Current Release (CR) if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 11, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 11, 2026

Sources and claim methodology

  • Source referencesupport.citrix.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Asterisk: Stack buffer overflow in res_xmpp XMPP namespace prefix handlingAlso CWE-787

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-787
Source
CVE List V5
Source checked
Oct 27, 2026
References
1 linked source
Open source record