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VulnerabilityPublished

CVE-2026-32673: F5 BIG-IP · Execution with Unnecessary Privileges

Affects F5 BIG-IPSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium · fixed in 21.0.0.2 : update F5 BIG-IP when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% 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:N

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
F5f5/big-ippkg:rpm/f5/big-ipOther threatsAffected
  • 16.1.0 – 21.0.0
4 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict access to Resource Administrator and Administrator roles to trusted personnel only and monitor for suspicious activity related to scripted monitors. Follow any future vendor advisories for updates on patches or mitigations.

Description

CVE-2026-32673 is a vulnerability in F5 BIG-IP scripted monitors that allows an authenticated user with Resource Administrator or Administrator roles to execute arbitrary system commands with elevated privileges. In appliance mode, exploitation can enable crossing security boundaries. The vulnerability affects multiple BIG-IP versions including 21.0.0, 17.5.0, 17.1.0, and 16.1.

References

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