How severe is CVE-2025-36640?

CVE-2025-36640 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-36640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-36640?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-36640 have an EU (EUVD) identifier?

Yes. CVE-2025-36640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2347.

When was CVE-2025-36640 published?

CVE-2025-36640 was published on 2026-01-13 and last updated on 2026-06-17.

CVE-2025-36640

CVE-2025-36640 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.3
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2347
Weakness: CWE-269
Published: 2026-01-13
Last modified: 2026-06-17

Description

A vulnerability has been identified in the installation/uninstallation of the Nessus Agent Tray App on Windows Hosts which could lead to escalation of privileges.

Frequently asked questions

What is CVE-2025-36640?: A vulnerability has been identified in the installation/uninstallation of the Nessus Agent Tray App on Windows Hosts which could lead to escalation of privileges.
How severe is CVE-2025-36640?: CVE-2025-36640 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-36640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-36640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-36640 have an EU (EUVD) identifier?: Yes. CVE-2025-36640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2347.
When was CVE-2025-36640 published?: CVE-2025-36640 was published on 2026-01-13 and last updated on 2026-06-17.

References

https://www.tenable.com/security/tns-2026-01

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