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CVE-2025-36631VulnerabilityPublished

CVE-2025-36631: Tenable Agent · Improper Privilege Management

Affects Tenable AgentSource CVE Database V5

0

Not known to be exploited · CVSS 8.4 High.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 3.1 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Tenable AgentAffected
  • =0
Fixed in–

AI-suggested

1. Immediate upgrade: Organizations should prioritize upgrading Tenable Agent to version 10.8.5 or later where this vulnerability is addressed. 2. Privilege restriction: Limit local user privileges strictly to reduce the number of users with local access to endpoints running the vulnerable agent. 3. File integrity monitoring: Implement monitoring solutions to detect unauthorized modifications to critical system files, especially those potentially targeted by log overwrites. 4. Application whitelisting: Employ application control policies to prevent unauthorized execution or modification of system files by non-administrative users. 5. Endpoint detection and response (EDR): Enhance endpoint monitoring to detect suspicious activities indicative of privilege escalation attempts. 6. Network segmentation: Restrict lateral movement by segmenting networks so that compromised endpoints have limited access to critical systems. 7. Incident response readiness: Prepare playbooks for rapid containment and remediation if exploitation is detected. 8. Audit and review: Regularly audit local user accounts and permissions to ensure minimal privilege principles are enforced. 9. Vendor communication: Monitor Tenable’s advisories for official patches or workarounds and apply them promptly once available.

Description

In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could overwrite arbitrary local system files with log content at SYSTEM privilege.

References

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