CVE-2023-40534

highpriority · track · 0EPSS 0.007 · 51 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.65% (51st) EPSS

CVSS 7.5 · high

Is it mine?

81 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · f5sirt@f5.comexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-401USCWE-401US

affected products (81)

Products and version ranges known to be affected.

F5 BIG-IP16.1.0 → 16.1.4.1.0.13.5-ENGenisa_euvdEU
F5 BIG-IP17.1.0 → 17.1.0.3.0.23.4-ENGenisa_euvdEU
F5 BIG-IP Next SPK1.6.0 → *enisa_euvdEU
F5 Networks, Inc. BIG-IP Access Policy Manager≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Application Acceleration Manager≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Application Acceleration Manager16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Application Security Manager≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Application Security Manager16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Application Visibility and Reporting (AVR)≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Application Visibility and Reporting (AVR)16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP Carrier-Grade NAT (CGNAT)≤ 17.1.0fstec_bduRU
F5 Networks, Inc. BIG-IP Carrier-Grade NAT (CGNAT)16.1.0 → 16.1.4.1fstec_bduRU
F5 Networks, Inc. BIG-IP DDos Hybrid Defender≤ 17.1.0fstec_bduRU

showing 20 of 81

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

published 2023-10-10modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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