What is CVE-2022-28691?

CVE-2022-28691 is a high-severity vulnerability in F5 Big-Ip, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-05-05.

How severe is CVE-2022-28691?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in F5 Big-Ip

CVE-2022-28691

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when a Real Time Streaming Protocol (RTSP) profile is configured on a virtual server, undisclosed traffic can cause an increase in Traffic Management Microkernel (TMM) resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Vulnerability class: DoS (Denial of Service)

Published 2022-05-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

F5 Big-Ip — versions 12.1.x, 11.6.x, 17.0.0
F5 Big-Ip Access Policy Manager — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Advanced Firewall Manager — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Analytics — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Application Acceleration Manager — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Application Security Manager — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Domain Name System — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Fraud Protection Service — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Global Traffic Manager — versions 13.1.0, 13.1.1, 13.1.3
F5 Big-Ip Link Controller — versions 13.1.0, 13.1.1, 13.1.3

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

support.f5.com/csp/article/K37155600 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-28691?: CVE-2022-28691 is a high-severity vulnerability in F5 Big-Ip, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-05-05.
How severe is CVE-2022-28691?: High severity. CVSS v3 base score is 7.5 out of 10.