CVE-2023-40534

high-risk
Published 2023-10-10

When a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server, and an iRule using the HTTP_REQUEST event or Local Traffic Policy are associated with the virtual server, undisclosed requests can cause 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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0.57% 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
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

F5

References (2)

Vendor Advisory https://my.f5.com/manage/s/article/K000133467
Vendor Advisory https://my.f5.com/manage/s/article/K000133467
52
/ 100
high-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 24/34 · High