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CVE-2021-23037

CRITICAL
9.6
CVSS Score
Published: September 14, 2021 at 05:53 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
12 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager

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Severity
CRITICAL9.6
Exploit prediction
EPSS 0.8%

Description

On all versions of 16.1.x, 16.0.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x, a reflected cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big IP Access Policy Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Advanced Firewall Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Analytics· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Application Acceleration Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Application Security Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Domain Name System· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Fraud Protection Service· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Global Traffic Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Link Controller· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0
Big IP Local Traffic Manager· F5
95%
11.6.0 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v ≤ 13.1.414.1.0 ≤ v ≤ 14.1.415.1.0 ≤ v ≤ 15.1.316.0.0 ≤ v ≤ 16.1.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCMitigationVendor Advisory
Source: [email protected]
https://support.f5.com/csp/article/K21435974

CVSS

9.6CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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