CVE-2026-78546

Local memory disclosure and application interruption

Published Sep 11, 2026 · Updated Sep 11, 2026

An out-of-bounds read in Citrix Workspace app for Windows allows local users to read memory and interrupt the application. Citrix has not published the affected component, the input that crosses a buffer boundary, or the exact operation that reads beyond it. Local access and low privileges are required; affected releases are before 2603.11 CR, before 2507.1 LTSR CU3, and before 2607 LTSR.

CVSS severity4.8
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

An out-of-bounds read in Citrix Workspace app for Windows allows local users to read memory and interrupt the application. Citrix has not published the affected component, the input that crosses a buffer boundary, or the exact operation that reads beyond it. Local access and low privileges are required; affected releases are before 2603.11 CR, before 2507.1 LTSR CU3, and before 2607 LTSR.

The record

CVE
CVE-2026-78546
Published
Sep 11, 2026
Updated
Sep 11, 2026
Vendor
Citrix
Product
Citrix Workspace app for Windows
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2507.1 LTSR CU3
  2. Affected versionversion=0 <2603.11 Current Release (CR)
  3. Affected versionversion=0 <LTSR 2607

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Citrix · Citrix Workspace app for Windowsversion=0 <2507.1 LTSR CU3; version=0 <2603.11 Current Release (CR); version=0 <LTSR 2607

Published CVSS scores

4.8CitrixCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo