CVE-2023-23555

highpriority · track · 30EPSS 0.006 · 50 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.63% (50th) EPSS

CVSS 7.5 · high

Is it mine?

53 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

On BIG-IP Virtual Edition versions 15.1x beginning in 15.1.4 to before 15.1.8 and 14.1.x beginning in 14.1.5 to before 14.1.5.3, and BIG-IP SPK beginning in 1.5.0 to before 1.6.0, when FastL4 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.

7.5

010

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

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.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-665USprimaryCWE-665US

affected products (53)

Products and version ranges known to be affected.

F5 BIG-IP14.1.5 → 14.1.5.3enisa_euvdEU
F5 BIG-IP15.1.4 → 15.1.8enisa_euvdEU
F5 BIG-IP SPK1.5.0 → 1.6.0enisa_euvdEU
F5 Networks, Inc. BIG-IP Access Policy Manager14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Application Acceleration Manager14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Application Acceleration Manager15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Application Security Manager14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Application Security Manager15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP DDos Hybrid Defender14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP DDos Hybrid Defender15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Domain Name System14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Domain Name System15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Fraud Protection Service14.1.5 → 14.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Fraud Protection Service15.1.4 → 15.1.8fstec_bduRU
F5 Networks, Inc. BIG-IP Link Controller14.1.5 → 14.1.5.3fstec_bduRU

showing 20 of 53

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0265F5 BIG-IP: Mehrere SchwachstellenDeutsch2023-02-01csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in F5 BIG-IP ausnutzen, um seine Privilegien zu erhöhen, Code zur Ausführung zu bringen, Sicherheitsvorkehrungen zu umgehen, Informationen offenzulegen und einen Denial of Service zu verursachen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-02-01modified 2026-06-17

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+654 more

references (4)

External citations — patches, advisories, analysis.

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