CVE-2026-40423

highpriority · track · 0EPSS 0.003 · 18 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (18th) EPSS

CVSS 7.5 · high

Is it mine?

124 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

When a SIP profile is configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (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.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

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

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

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · f5sirt@f5.com

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770US

affected products (124)

Products and version ranges known to be affected.

F5 BIG-IPall versionscert_bundDEcpe:/a:f5:big-ip:-
F5 BIG-IP APMall versionscert_bundDEcpe:/a:f5:big-ip:apm
F5 BIG-IP Advanced WAF/ASMall versionscert_bundDEcpe:/a:f5:big-ip:advanced_wafasm
F5 BIG-IP DDoS Hybrid Defenderall versionscert_bundDEcpe:/a:f5:big-ip:ddos_hybrid_defender
F5 BIG-IP DNSall versionscert_bundDEcpe:/a:f5:big-ip:dns
F5 BIG-IP Next CNFall versionscert_bundDEcpe:/a:f5:big-ip:next_cnf
F5 BIG-IP Next SPKall versionscert_bundDEcpe:/a:f5:big-ip:next_spk
F5 BIG-IP Next for Kubernetesall versionscert_bundDEcpe:/a:f5:big-ip:next_for_kubernetes
F5 BIG-IP PEMall versionscert_bundDEcpe:/a:f5:big-ip:pem
F5 BIG-IP SSL Orchestratorall versionscert_bundDEcpe:/a:f5:big-ip:ssl_orchestrator
F5 BIG-IP16.1.0 → *enisa_euvdEU
F5 BIG-IP17.1.0 → 17.1.3.2enisa_euvdEU
F5 BIG-IP17.5.0 → 17.5.1.6enisa_euvdEU
F5 BIG-IP21.0.0 → 21.0.0.2enisa_euvdEU
F5 AI Gateway≤ vers:unknown/*ncsc_nlNL
F5 BIG-IP≤ vers:unknown/*ncsc_nlNL
F5 BIG-IP APM≤ vers:unknown/*ncsc_nlNL
F5 BIG-IP Advanced WAF/ASM≤ vers:unknown/*ncsc_nlNL
F5 BIG-IP Advanced WAF/ASM and BIG-IP DDoS Hybrid Defender≤ vers:unknown/*ncsc_nlNL
F5 BIG-IP DNS≤ vers:unknown/*ncsc_nlNL

showing 20 of 124

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0162Kwetsbaarheden verholpen in F5 BIG-IP en BIG-IQ productenNL2026-05-15csaf · ncsc_nlNL
F5 heeft meerdere kwetsbaarheden verholpen in de BIG-IP en BIG-IQ productlijnen, inclusief componenten zoals iControl REST, iControl SOAP, TMOS Shell, Traffic Management Microkernel (TMM), Configuration utility, Advanced WAF, ASM, PEM, DNS, Access Policy Manager (APM) en SSL Orchestrator.
WID-SEC-W-2026-1532F5 BIG-IP Produkte: Mehrere SchwachstellenDeutsch2026-05-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in F5 BIG-IP ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-05-13modified 2026-10-26

references (4)

External citations — patches, advisories, analysis.

scry

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