CVE-2026-15265: A path traversal vulnerability in Tenable Agent 11.2.0 and 11.1.3 and lower allows a privileged attacker to wr

Q: How do I fix CVE-2026-15265?

nessus agent: upgrade to 11.1.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-15265 being exploited?

CVE-2026-15265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-15265 affect?

CVE-2026-15265 affects nessus agent. Severity is critical (CVSS 9.1). A path traversal vulnerability in Tenable Agent 11.2.0 and 11.1.3 and lower allows a privileged attacker to write arbitrary files outside the intended plugin directory, potentially leading to remote code execution.

Q: How urgent is CVE-2026-15265?

Priority 43/100. Critical severity

This month

CRITICAL 9.1UPGRADE

CVE-2026-15265 is a critical-severity flaw (CVSS 9.1) affecting nessus agent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A path traversal vulnerability in Tenable Agent 11.2.0 and 11.1.3 and lower allows a privileged attacker to write arbitrary files outside the intended plugin directory, potentially leading to remote code execution.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-22, CWE-347
Published	2026-07-14
Last modified	2026-10-24

Publisher (CNA): Tenable Network Security, Inc. · Vendor: tenable

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 15:16 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

tenable nessus agent UPGRADE

Affected: < 11.1.4 · 11.2.0

Fixed in: 11.1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy nessus-agent || rpm -q nessus-agent || nessus-agent --version

2. UPGRADE to 11.1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nessus-agent

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nessus-agent

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-15265?

nessus agent: upgrade to 11.1.4. Exact commands for each OS are on this page.

Is CVE-2026-15265 being exploited?

CVE-2026-15265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-15265 affect?

CVE-2026-15265 affects nessus agent. Severity is critical (CVSS 9.1). A path traversal vulnerability in Tenable Agent 11.2.0 and 11.1.3 and lower allows a privileged attacker to write arbitrary files outside the intended plugin directory, potentially leading to remote code execution.

How urgent is CVE-2026-15265?

Priority 43/100. Critical severity

References

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