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TI-2025-34728 Aliases CVE-2025-55036GHSA-5w8q-m8cq-gcqq

BIG-IP SSL Orchestrator vulnerability

Priority MEDIUM 44CWE-787Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

When BIG-IP SSL Orchestrator explicit forward proxy is configured on a virtual server and the proxy connect feature is enabled, undisclosed traffic may cause memory corruption.  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 0.00348 28th percentileScored 2026-11-07
Fix Fixed BIG-IP (F5): 17.5.0, 17.1.3, 16.1.6 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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-IP17.1.0 to before 17.1.3; 16.1.0 to before 16.1.6; 15.1.0 to before 15.1.10.817.5.0, 17.1.3, 16.1.6, 15.1.10.8Patch availableCNA
  • BIG-IP VendorF5 Affected 17.1.0 to before 17.1.3; 16.1.0 to before 16.1.6; 15.1.0 to before 15.1.10.8 Fixed in 17.5.0, 17.1.3, 16.1.6, 15.1.10.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*15.1.0 to before 15.1.10.8; 16.1.0 to before 16.1.6; 17.1.0 to before 17.1.3VulnerableF5
  • cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* Versions 15.1.0 to before 15.1.10.8; 16.1.0 to before 16.1.6; 17.1.0 to before 17.1.3 Vulnerable ·F5

Remediation

  • Fix · CNA BIG-IP (F5) Fixed in 17.5.0, 17.1.3, 16.1.6, 15.1.10.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-55036
  2. 2026-10-03 Alias added: GHSA-5w8q-m8cq-gcqq

References

Advisory 1

  • TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability 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
  • TI-2023-08634 iControl SOAP vulnerability CVSS 3.1HIGH 8.5
  • TI-2025-14341 BIG-IP iControl REST and tmsh vulnerability CVSS 4.0HIGH 8.7
  • TI-2025-22807 Appliance mode BIG-IP iControl REST and tmsh vulnerability CVSS 4.0HIGH 8.5
See all 146 →

Sources

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