CVE-2022-26517

high-risk
Published 2022-05-05

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

Do I need to act?

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0.67% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (20)

Affected Vendors

F5

References (2)

Vendor Advisory https://support.f5.com/csp/article/K54082580
Vendor Advisory https://support.f5.com/csp/article/K54082580
53
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 2/34 · Minimal
Exposure 33/34 · Critical