CVE-2026-84420: citirx citrix workspace app for windows Out-of-bounds Read
CVSS: 5.8v4.0MediumAwaiting analysis
Published 13-10-2026Last modified 14-10-2026
Vulnerability summary
CVE-2026-84420 is a medium (CVSS 5.8) Out-of-bounds Read vulnerability in citirx citrix workspace app for windows. EPSS estimates a 0.09% chance of exploitation in the next 30 days, higher than 0.4% of scored vulnerabilities.
CVSS score
5.8/10
010
Medium · v4.0 (CVE.org)EPSS score
0.09%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-10-2026PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
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 metrics
2 scores · 2 sources · 1 versionMedium 5.8Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST5.8MediumCVSS: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
EPSS trend
Probability
0.09%
Chance of exploitation in the next 30 days
Percentile
0%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
14-10-202620-10-2026
EPSS score0.09%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Citirx1 product
- citrix workspace app for windows< 2603.20 CR | < LTSR 2607 | < LTSR 2507 CU3
1 vendor · 1 product