Cyber Resilience

CVE-2023-40534

High

Published: 10 October 2023

Published
10 October 2023
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0057 69.1th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-40534 is a high-severity Missing Release of Memory after Effective Lifetime (CWE-401) vulnerability in F5 Big-Ip Access Policy Manager. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 30.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE(s)
CWE-401

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

f5
big-ip access policy manager
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip advanced firewall manager
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip advanced web application firewall
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip analytics
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip application acceleration manager
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip application security manager
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip application visibility and reporting
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip carrier-grade nat
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip ddos hybrid defender
17.1.0 · 16.1.0 — 16.1.4.1
f5
big-ip domain name system
17.1.0 · 16.1.0 — 16.1.4.1
+10 more product configuration(s) — see NVD for full list

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References