Skip to main content
VulnerabilityPublished

CVE-2026-41225: F5 BIG-IP · Incorrect Use of Privileged APIs

Affects F5 BIG-IPSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 7.2 High · fixed in 21.0.0.2 : patch F5 BIG-IP soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 21.0.0.2, 17.5.1.6, 17.1.3.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 30 Oct 2026.

What to do

Upgrade F5 BIG-IP to 21.0.0.2, 17.5.1.6 or 17.1.3.2.

Affected software

ProductAffectedFixed in
F5BIG-IPAffected
  • >=21.0.0 <21.0.0.2
  • >=17.5.0 <17.5.1.6
  • >=17.1.0 <17.1.3.2
  • >=16.1.0
Fixed in
  • 21.0.0.2
  • 17.5.1.6
  • 17.1.3.2

AI-suggested

If you cannot patch yet, restrict Manager-level access to trusted administrators only and monitor for unusual configuration changes. Follow F5's security advisories closely for updates on patches or mitigations.

Description

CVE-2026-41225 is a high-severity vulnerability in F5 BIG-IP's iControl REST interface. It allows a highly privileged, authenticated attacker with at least Manager role permissions to create configuration objects that enable execution of arbitrary commands. This vulnerability affects specific versions of BIG-IP including 21.0.0, 17.5.0, 17.1.0, and 16.1.

References

Community reviews

Loading reviews…