Which versions of Cato Client are affected by CVE-2025-3886?

Organizations using CatoNetworks CatoClient should be aware of moderate risk from CVE-2025-3886, a race condition vulnerability rated CVSS 5.7.

How to fix or mitigate CVE-2025-3886?

Within 30 days: Identify affected systems running CatoNetworks CatoClient and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Cato Client CVE-2025-3886

Q: What is the CVSS score of CVE-2025-3886?

CVE-2025-3886 has a CVSS 4.0 base score of 5.7 (Medium). CVSS vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/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:Y/R:U/V:X/RE:L/U:Green. EPSS exploitation probability: 0.1%.

MEDIUM

Race Condition (CWE-362)

2025-04-27 2505284f-8ffb-486c-bf60-e19c1097a90b

Race Condition Privilege Escalation Cato Client

5.7

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.7 MEDIUM

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/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:Y/R:U/V:X/RE:L/U:Green

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/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:Y/R:U/V:X/RE:L/U:Green

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:38 vuln.today

CVE Published

Apr 27, 2025 - 11:15 nvd

MEDIUM 5.7

DescriptionCVE.org

An issue in CatoNetworks CatoClient before v.5.8.0 allows attackers to escalate privileges and achieve a race condition (TOCTOU) via the PrivilegedHelperTool component.

AnalysisAI

An issue in CatoNetworks CatoClient before v.5.8.0 allows attackers to escalate privileges and achieve a race condition (TOCTOU) via the PrivilegedHelperTool component. Rated medium severity (CVSS 5.7). No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-362. An issue in CatoNetworks CatoClient before v.5.8.0 allows attackers to escalate privileges and achieve a race condition (TOCTOU) via the PrivilegedHelperTool component. Affected products include: Catonetworks Cato Client.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.