Strix
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CVE-2022-26517

HIGHCVSS 7.5/10EPSS 0.75%

Last modified

CVE-2022-26517 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On F5 BIG-IP 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when the BIG-IP CGNAT Large Scale NAT (LSN) pool is configured on a virtual server and packet filtering is enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

On F5 BIG-IP 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when the BIG-IP CGNAT Large Scale NAT (LSN) pool is configured on a virtual server and packet filtering is enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. 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
0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager13.1.0
F5Big-Ip Access Policy Manager13.1.1
F5Big-Ip Access Policy Manager13.1.3
F5Big-Ip Access Policy Manager13.1.4
F5Big-Ip Access Policy Manager13.1.5
F5Big-Ip Access Policy Manager14.1.0
F5Big-Ip Access Policy Manager14.1.2
F5Big-Ip Access Policy Manager14.1.3
F5Big-Ip Access Policy Manager14.1.4
F5Big-Ip Access Policy Manager15.1.0
F5Big-Ip Access Policy Manager15.1.1
F5Big-Ip Access Policy Manager15.1.2
F5Big-Ip Access Policy Manager15.1.3
F5Big-Ip Access Policy Manager15.1.4
F5Big-Ip Access Policy Manager15.1.5
F5Big-Ip Access Policy Manager16.1.0
F5Big-Ip Access Policy Manager16.1.1
F5Big-Ip Access Policy Manager16.1.2
F5Big-Ip Advanced Firewall Manager13.1.0
F5Big-Ip Advanced Firewall Manager13.1.1
F5Big-Ip Advanced Firewall Manager13.1.3
F5Big-Ip Advanced Firewall Manager13.1.4
F5Big-Ip Advanced Firewall Manager13.1.5
F5Big-Ip Advanced Firewall Manager14.1.0
F5Big-Ip Advanced Firewall Manager14.1.2
F5Big-Ip Advanced Firewall Manager14.1.3
F5Big-Ip Advanced Firewall Manager14.1.4
F5Big-Ip Advanced Firewall Manager15.1.0
F5Big-Ip Advanced Firewall Manager15.1.1
F5Big-Ip Advanced Firewall Manager15.1.2
F5Big-Ip Advanced Firewall Manager15.1.3
F5Big-Ip Advanced Firewall Manager15.1.4
F5Big-Ip Advanced Firewall Manager15.1.5
F5Big-Ip Advanced Firewall Manager16.1.0
F5Big-Ip Advanced Firewall Manager16.1.1
F5Big-Ip Advanced Firewall Manager16.1.2
F5Big-Ip Analytics13.1.0
F5Big-Ip Analytics13.1.1
F5Big-Ip Analytics13.1.3
F5Big-Ip Analytics13.1.4
F5Big-Ip Analytics13.1.5
F5Big-Ip Analytics14.1.0
F5Big-Ip Analytics14.1.2
F5Big-Ip Analytics14.1.3
F5Big-Ip Analytics14.1.4
F5Big-Ip Analytics15.1.0
F5Big-Ip Analytics15.1.1
F5Big-Ip Analytics15.1.2
F5Big-Ip Analytics15.1.3
F5Big-Ip Analytics15.1.4

Showing 50 of 198 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-26517?
On F5 BIG-IP 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when the BIG-IP CGNAT Large Scale NAT (LSN) pool is configured on a virtual server and packet filtering is enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
How severe is CVE-2022-26517?
CVE-2022-26517 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.
How do I fix CVE-2022-26517?
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-2022-26517?

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

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Source: NVD / NIST