CVE-2025-21091

highpriority · track · 0EPSS 0.005 · 39 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.45% (39th) EPSS

CVSS 7.5 · high

Is it mine?

74 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

When SNMP v1 or v2c are disabled on the BIG-IP, undisclosed requests can cause an increase in memory resource utilization. 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:Lsecondary · 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:L/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:L/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)

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 (74)

Products and version ranges known to be affected.

F5 BIG-IPall versionscert_bundDEcpe:/a:f5:big-ip:-
F5 BIG-IP15.1.0 → *enisa_euvdEU
F5 BIG-IP16.1.0 → *enisa_euvdEU
F5 BIG-IP17.1.0 → 17.1.2enisa_euvdEU
big-ip_next_cnfall versionsncsc_nlNLcpe:2.3:a:f5:big-ip_next_cnf:*:*:*:*:*:*:*:*
big-ip_next_spkall versionsncsc_nlNLcpe:2.3:a:f5:big-ip_next_spk:*:*:*:*:*:*:*:*
f5 big-ipall versionsncsc_nlNLcpe:2.3:a:f5:big-ip:*:*:*:*:*:*:*:*
f5 big-ip nextall versionsncsc_nlNLcpe:2.3:a:f5:big-ip_next:*:*:*:*:*:*:*:*
f5 big-ip next central managerall versionsncsc_nlNLcpe:2.3:a:f5:big-ip_next_central_manager:*:*:*:*:*:*:*:*
f5 nginx open sourceall versionsncsc_nlNLcpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
f5 nginx plusall versionsncsc_nlNLcpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*
f5 big-ip access policy manager15.1.0 → 15.1.10nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip access policy manager16.1.0 → 16.1.6nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip access policy manager17.1.0 → 17.1.2nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager15.1.0 → 15.1.10nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager16.1.0 → 16.1.6nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager17.1.0 → 17.1.2nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced web application firewall15.1.0 → 15.1.10nvdUScpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip advanced web application firewall16.1.0 → 16.1.6nvdUScpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
f5 big-ip advanced web application firewall17.1.0 → 17.1.2nvdUScpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

showing 20 of 74

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2025-0041Kwetsbaarheden verholpen in F5 BIG-IPNL2025-02-07csaf · ncsc_nlNL
F5 heeft kwetsbaarheden verholpen in BIG-IP.
WID-SEC-W-2025-0287F5 BIG-IP: Mehrere SchwachstellenDeutsch2025-02-05csaf · cert_bundDE
Ein Angreifer kann diese Schwachstellen ausnutzen, um beliebige Systembefehle auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen und einen Denial-of-Service-Zustand zu erzeugen.

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 NVD CVE.org MITRE

published 2025-02-05modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan