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CVE-2026-20732

LOWCVSS 2.3/10EPSS 0.15%

Last modified

CVE-2026-20732 is a low-severity vulnerability rated 2.3/10 on the CVSS scale. 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.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS 4.0
2.3/10

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/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:X

EPSS Probability
0.15%

4.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Advanced Firewall Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Advanced Web Application Firewall>= 16.1.0, <= 16.1.6
F5Big-Ip Analytics>= 16.1.0, <= 16.1.6
F5Big-Ip Application Acceleration Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Application Security Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Application Visibility And Reporting>= 16.1.0, <= 16.1.6
F5Big-Ip Automation Toolchain>= 16.1.0, <= 16.1.6
F5Big-Ip Carrier-Grade Nat>= 16.1.0, <= 16.1.6
F5Big-Ip Container Ingress Services>= 16.1.0, <= 16.1.6
F5Big-Ip Ddos Hybrid Defender>= 16.1.0, <= 16.1.6
F5Big-Ip Domain Name System>= 16.1.0, <= 16.1.6
F5Big-Ip Edge Gateway>= 16.1.0, <= 16.1.6
F5Big-Ip Fraud Protection Service>= 16.1.0, <= 16.1.6
F5Big-Ip Global Traffic Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Link Controller>= 16.1.0, <= 16.1.6
F5Big-Ip Local Traffic Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Policy Enforcement Manager>= 16.1.0, <= 16.1.6
F5Big-Ip Ssl Orchestrator>= 16.1.0, <= 16.1.6
F5Big-Ip Webaccelerator>= 16.1.0, <= 16.1.6
F5Big-Ip Websafe>= 16.1.0, <= 16.1.6
F5Big-Ip Access Policy Manager>= 17.1.0, < 17.1.3.1
F5Big-Ip Access Policy Manager>= 17.5.0, < 17.5.1.4
F5Big-Ip Advanced Firewall Manager>= 17.1.0, < 17.1.3.1
F5Big-Ip Advanced Firewall Manager>= 17.5.0, < 17.5.1.4
F5Big-Ip Advanced Web Application Firewall>= 17.1.0, < 17.1.3.1
F5Big-Ip Advanced Web Application Firewall>= 17.5.0, < 17.5.1.4
F5Big-Ip Analytics>= 17.1.0, < 17.1.3.1
F5Big-Ip Analytics>= 17.5.0, < 17.5.1.4
F5Big-Ip Application Acceleration Manager>= 17.1.0, < 17.1.3.1
F5Big-Ip Application Acceleration Manager>= 17.5.0, < 17.5.1.4
F5Big-Ip Application Security Manager>= 17.1.0, < 17.1.3.1
F5Big-Ip Application Security Manager>= 17.5.0, < 17.5.1.4
F5Big-Ip Application Visibility And Reporting>= 17.1.0, < 17.1.3.1
F5Big-Ip Application Visibility And Reporting>= 17.5.0, < 17.5.1.4
F5Big-Ip Automation Toolchain>= 17.1.0, < 17.1.3.1
F5Big-Ip Automation Toolchain>= 17.5.0, < 17.5.1.4
F5Big-Ip Carrier-Grade Nat>= 17.1.0, < 17.1.3.1
F5Big-Ip Carrier-Grade Nat>= 17.5.0, < 17.5.1.4
F5Big-Ip Container Ingress Services>= 17.1.0, < 17.1.3.1
F5Big-Ip Container Ingress Services>= 17.5.0, < 17.5.1.4
F5Big-Ip Ddos Hybrid Defender>= 17.1.0, < 17.1.3.1
F5Big-Ip Ddos Hybrid Defender>= 17.5.0, < 17.5.1.4
F5Big-Ip Domain Name System>= 17.1.0, < 17.1.3.1
F5Big-Ip Domain Name System>= 17.5.0, < 17.5.1.4
F5Big-Ip Edge Gateway>= 17.1.0, < 17.1.3.1
F5Big-Ip Edge Gateway>= 17.5.0, < 17.5.1.4
F5Big-Ip Fraud Protection Service>= 17.1.0, < 17.1.3.1
F5Big-Ip Fraud Protection Service>= 17.5.0, < 17.5.1.4
F5Big-Ip Global Traffic Manager>= 17.1.0, < 17.1.3.1

Showing 50 of 63 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-20732?
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.
How severe is CVE-2026-20732?
CVE-2026-20732 has a CVSS score of 2.3/10 (LOW severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20732?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20732?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST