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TI-2023-09386 Aliases CVE-2023-23555GHSA-9hrr-866c-p39r

BIG-IP Virtual Edition vulnerability

Priority LOW 34CWE-665Published · 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 · CNA. Fix status from CNA.

Summary

On BIG-IP Virtual Edition versions 15.1x beginning in 15.1.4 to before 15.1.8 and 14.1.x beginning in 14.1.5 to before 14.1.5.3, and BIG-IP SPK beginning in 1.5.0 to before 1.6.0, when FastL4 profile is configured on a virtual server, undisclosed traffic 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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00626 50th percentileScored 2026-11-07
Fix Fixed BIG-IP (F5): 15.1.8, 14.1.5.3BIG-IP SPK (F5): 1.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
F5BIG-IP15.1.4 to before 15.1.8; 14.1.5 to before 14.1.5.315.1.8, 14.1.5.3Patch availableCNA
F5BIG-IP SPK1.5.0 to before 1.6.01.6.0Patch availableCNA
  • BIG-IP VendorF5 Affected 15.1.4 to before 15.1.8; 14.1.5 to before 14.1.5.3 Fixed in 15.1.8, 14.1.5.3 Patch available CNA
  • BIG-IP SPK VendorF5 Affected 1.5.0 to before 1.6.0 Fixed in 1.6.0 Patch available CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.0 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.0 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8VulnerableF5
cpe:2.3:a:f5:big-ip_service_proxy:*:*:*:*:*:kubernetes:*:*1.5.0 to before 1.6.0VulnerableF5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* Versions 14.1.5 to before 14.1.5.3; 15.1.4 to before 15.1.8 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_service_proxy:*:*:*:*:*:kubernetes:*:* Versions 1.5.0 to before 1.6.0 Vulnerable ·F5

Remediation

  • Fix · CNA BIG-IP (F5) Fixed in 15.1.8, 14.1.5.3
  • Fix · CNA BIG-IP SPK (F5) Fixed in 1.6.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-23555
  2. 2026-10-03 Alias added: GHSA-9hrr-866c-p39r
  3. 2026-10-30 EPSS moved to the 50th–90th percentile

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