CVE-2022-23011

Name: CVE-2022-23011
Creator: NVD / NIST
Published: 2022-01-25T20:15:09.14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2022-23011 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.93%

56.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
F5	Big-Ip Access Policy Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Access Policy Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Advanced Firewall Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Advanced Firewall Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Analytics	>= 14.1.0, < 14.1.3
F5	Big-Ip Analytics	>= 15.1.0, < 15.1.4
F5	Big-Ip Application Acceleration Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Application Acceleration Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Application Security Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Application Security Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Domain Name System	>= 14.1.0, < 14.1.3
F5	Big-Ip Domain Name System	>= 15.1.0, < 15.1.4
F5	Big-Ip Fraud Protection Service	>= 14.1.0, < 14.1.3
F5	Big-Ip Fraud Protection Service	>= 15.1.0, < 15.1.4
F5	Big-Ip Global Traffic Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Global Traffic Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Link Controller	>= 14.1.0, < 14.1.3
F5	Big-Ip Link Controller	>= 15.1.0, < 15.1.4
F5	Big-Ip Local Traffic Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Local Traffic Manager	>= 15.1.0, < 15.1.4
F5	Big-Ip Policy Enforcement Manager	>= 14.1.0, < 14.1.3
F5	Big-Ip Policy Enforcement Manager	>= 15.1.0, < 15.1.4

References

https://support.f5.com/csp/article/K68755210Mitigation, Vendor Advisory
https://support.f5.com/csp/article/K68755210Mitigation, Vendor Advisory

Timeline

Published: Jan 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23011?

How severe is CVE-2022-23011?

CVE-2022-23011 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23011?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23011?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST