BIG-IP iRule vulnerability CVE-2022-41833

published 2022-10-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-45000

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

In all BIG-IP 13.1.x versions, when an iRule containing the HTTP::collect command is configured on a virtual server, undisclosed requests can cause Traffic Management Microkernel (TMM) to terminate.

Patch / fix

fixed in 1

F5 BIG-IP 16.1.x

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-05-07)

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

F5 BIG-IP

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

References

support.f5.com /csp/article/K69940053
mitigation, vendor-advisory

Sources

CVE List CVE-2022-41833
NVD CVE-2022-41833

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary