CVE-2026-84420
Out-of-Bounds Write and Out-of-Bounds Read
No known exploitation. EPSS puts it in the 0th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Citirx Citrix Workspace app for WindowsAffected: < 2603.20 CRUpgrade to: 2603.20 CRAffected: < LTSR 2607Upgrade to: LTSR 2607Affected: < LTSR 2507 CU3Upgrade to: LTSR 2507 CU3Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
<0.1% chance of exploitation activity in the next 30 days, which ranks it in the 0th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
- Attention now
Rising, driven by in-the-wild reports.
Lifecycle
5 events over 1 day, from the signal feeds we watch.
- Record updated
- Publishedweakness classified, att&ck mapped, record updated
Affected products
Technical detail
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
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