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TI-2021-05894 Aliases CVE-2021-23035GHSA-498v-8jr7-2hv8

Improper input validation in BIG-IP

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 BIG-IP 14.1.x before 14.1.4.4, when an HTTP profile is configured on a virtual server, after a specific sequence of packets, chunked responses 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 0.0095 61st percentileScored 2026-11-07
Fix Fixed BIG-IP: 14.1.4.4

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—BIG-IP14.1 to before 14.1.4.414.1.4.4Patch availableCNA
  • BIG-IP Vendor— Affected 14.1 to before 14.1.4.4 Fixed in 14.1.4.4 Patch available CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*14.1.0 – 14.1.4.4VulnerableF5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 14.1.0 – 14.1.4.4 Vulnerable ·F5

Remediation

  • Fix · CNA BIG-IP Fixed in 14.1.4.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23035
  2. 2026-10-03 Alias added: GHSA-498v-8jr7-2hv8

References

Advisory 1

  • TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-01269 Missing authentication in F5 BIG-IP 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-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
See all 629 →

Sources

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