Out-of-Bounds Write and Out-of-Bounds Read
CVSS score
5.8
EPSS probability
—
Risk score
0.6
Published
7 h ago
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Impact on My Inventory
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
1
Source agreement
Tam uyum
Evidence confidence
%55
Short explanation
An out-of-bound read vulnerability has been identified in the Citirx Citrix Workspace app for Windows. Affected versions include releases before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3. The patch status remains unknown [S0, S1].
This vulnerability can threaten the confidentiality, integrity, and availability of the target system in local attack scenarios with specific attack conditions. There is no confirmation of active exploitation in the CISA KEV list [S0].
What should be done?
- Follow the vendor advisory
- Check for official security updates
Chain of evidence and sources
CVE-2026-84420, Citirx Citrix Workspace app for Windows uygulamasını etkilemektedir.
Etkilenen sürümler 2603.20 CR, LTSR 2607 ve LTSR 2507 CU3 öncesi sürümleri kapsamaktadır.
Zafiyetin yama durumu incelenen kaynaklarda belirsiz durumdadır.
Show the technical text from the sources
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.
CVSS vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
CWE: CWE-125
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-84420 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Citirx | Citrix Workspace app for Windows | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.8 | CVSS V40 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD |
| 5.8 | CVSS V4_0 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-84420 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-84420 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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