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TI-2021-05895 Aliases CVE-2021-23036GHSA-mc98-xj99-qf7r

Improper input validation in BIG-IP Advanced WAF and BIG-IP ASM

Priority LOW 35CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

On version 16.0.x before 16.0.1.2, when a BIG-IP ASM and DataSafe profile are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Why it matters now

EPSS 0.00933 60th percentileScored 2026-11-07
Fix Fixed BIG-IP Advanced WAF and BIG-IP ASM: 16.0.1.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—BIG-IP Advanced WAF and BIG-IP ASM16.0 to before 16.0.1.216.0.1.2Patch availableCNA
  • BIG-IP Advanced WAF and BIG-IP ASM Vendor— Affected 16.0 to before 16.0.1.2 Fixed in 16.0.1.2 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*16.0.0 – 16.0.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*16.0.0 – 16.0.1VulnerableF5
cpe:2.3:a:f5:big-ip_datasafe:*:*:*:*:*:*:*:*16.0.0 – 16.0.1VulnerableF5
  • cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* Versions 16.0.0 – 16.0.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 16.0.0 – 16.0.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_datasafe:*:*:*:*:*:*:*:* Versions 16.0.0 – 16.0.1 Vulnerable ·F5

Remediation

  • Fix · CNA BIG-IP Advanced WAF and BIG-IP ASM Fixed in 16.0.1.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23036
  2. 2026-10-03 Alias added: GHSA-mc98-xj99-qf7r

References

Advisory 1

  • TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25231 BIG-IP Configuration utility authenticated SQL injection vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
See all 194 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences