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HIGH · 7.5

CVE-2025-21087

When Client or Server SSL profiles are configured on a Virtual Server, or DNSSEC signing operations are in use, undisclosed traffic can cause an increase in memory and CPU resource utilization. N...

Vulnerability Description

When Client or Server SSL profiles are configured on a Virtual Server, or DNSSEC signing operations are in use, undisclosed traffic can cause an increase in memory and CPU resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Advanced Firewall Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Advanced Web Application Firewall>= 15.1.0, <= 15.1.10
F5Big-Ip Analytics>= 15.1.0, <= 15.1.10
F5Big-Ip Application Acceleration Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Application Security Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Application Visibility And Reporting>= 15.1.0, <= 15.1.10
F5Big-Ip Automation Toolchain>= 15.1.0, <= 15.1.10
F5Big-Ip Carrier-Grade Nat>= 15.1.0, <= 15.1.10
F5Big-Ip Container Ingress Services>= 15.1.0, <= 15.1.10
F5Big-Ip Ddos Hybrid Defender>= 15.1.0, <= 15.1.10
F5Big-Ip Domain Name System>= 15.1.0, <= 15.1.10
F5Big-Ip Edge Gateway>= 15.1.0, <= 15.1.10
F5Big-Ip Fraud Protection Service>= 15.1.0, <= 15.1.10
F5Big-Ip Global Traffic Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Link Controller>= 15.1.0, <= 15.1.10
F5Big-Ip Local Traffic Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Policy Enforcement Manager>= 15.1.0, <= 15.1.10
F5Big-Ip Ssl Orchestrator>= 15.1.0, <= 15.1.10
F5Big-Ip Webaccelerator>= 15.1.0, <= 15.1.10

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2025-21087?

CVE-2025-21087 is a vulnerability with a CVSS score of 7.5 (HIGH). When Client or Server SSL profiles are configured on a Virtual Server, or DNSSEC signing operations are in use, undisclosed traffic can cause an increase in memory and CPU resource utilization. N...

How severe is CVE-2025-21087?

CVE-2025-21087 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-21087?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.