Medium severity · published Feb 13, 2026
CVE-2026-2026
Improper Access Control Allows Denial of Service
6.1
CVSS
0.1%
EPSS
No
On KEV
Description
A vulnerability has been identified where weak file permissions in the Nessus Agent directory on Windows hosts could allow unauthorized access, potentially permitting Denial of Service (DoS) attacks.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
Agent · Tenable
11.1.0 before 11.1.2; before 11.0.4 · source: vendor
NA
Nessus Agent · Tenable
before 11.0.4; 11.1.0 before 11.1.2 · source: NVD