SB2026051439 - Local information disclosure in BIG-IP DNS tmsh

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Main Vulnerability Database SB2026051439

SB2026051439 - Local information disclosure in BIG-IP DNS tmsh

Published: May 14, 2026

Security Bulletin ID SB2026051439
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cleartext storage of sensitive information (CVE-ID: CVE-2026-42408)

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local privileged user to disclose sensitive information.

The vulnerability exists due to cleartext storage of sensitive information in the TMOS Shell (tmsh) command line history and audit log when executing a tmsh command. A local privileged user can run a tmsh command to disclose sensitive information.

Only systems with BIG-IP DNS provisioned are vulnerable. There is no data plane exposure; this is a control plane issue only.


Remediation

Install update from vendor's website.

References