CVE-2025-36630: Tenable Nessus · Improper Privilege Management
Affects Tenable NessusSource CVE Database V5
Not known to be exploited · CVSS 8.4 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% 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:HExploitation evidence
Disclosed: evidence found.
CVE published 1 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Tenable Nessus | Affected
| Fixed in– |
AI-suggested
European organizations should prioritize upgrading Tenable Nessus installations to version 10.8.5 or later as soon as patches are available. Until then, restrict local user access on Windows hosts running Nessus to trusted administrators only, minimizing the risk of exploitation by non-privileged users. Implement strict file system permissions on Nessus log directories to prevent unauthorized write access. Employ application whitelisting and endpoint detection and response (EDR) solutions to monitor and block suspicious file modification activities. Regularly audit user privileges and Nessus configuration settings to ensure adherence to the principle of least privilege. Additionally, consider isolating Nessus scanning hosts from general user environments to reduce attack surface. Monitoring logs for unusual file overwrite attempts or privilege escalation indicators can provide early warning of exploitation attempts.
Description
In Tenable Nessus 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.