Low 3.1Published Feb 4, 2026

CVE-2026-20732BIG-IP Configuration utility vulnerability

Updated under an hour ago (Oct 26, 2026, 6:50 PM ET)

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It affects F5 BIG-IP and 21 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for F5 BIG-IP

Exploited in the last 30 days

A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS: 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-451
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: f5
NVD analysis: Analyzed
Record last updated: Feb 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

F5 BIG-IP f5:big_ip (from the name)	from 21.0.0 not affected; from 17.5.0 before 17.5.1.4; from 17.1.0 before 17.1.3.1; from 16.1.0	CNA record
f5 big-ip_access_policy_manager f5:big-ip_access_policy_manager	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_advanced_firewall_manager f5:big-ip_advanced_firewall_manager	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_advanced_web_application_firewall f5:big-ip_advanced_web_application_firewall	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_analytics f5:big-ip_analytics	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_application_acceleration_manager f5:big-ip_application_acceleration_manager	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_application_security_manager f5:big-ip_application_security_manager	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_application_visibility_and_reporting f5:big-ip_application_visibility_and_reporting	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_automation_toolchain f5:big-ip_automation_toolchain	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
f5 big-ip_carrier-grade_nat f5:big-ip_carrier-grade_nat	from 16.1.0 through 16.1.6; from 17.1.0 before 17.1.3.1; from 17.5.0 before 17.5.1.4	NVD
1–10 of 22

References

References

https://my.f5.com/manage/s/article/K000156644	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.