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HIGH · 7.5

CVE-2025-59781

When DNS cache is configured on a BIG-IP or BIG-IP Next CNF virtual server, undisclosed DNS queries can cause an increase in memory resource utilization.   Note: Software versions which have reached E...

Vulnerability Description

When DNS cache is configured on a BIG-IP or BIG-IP Next CNF virtual server, undisclosed DNS queries can cause an increase in memory 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, < 15.1.10.8
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Advanced Web Application Firewall>= 15.1.0, < 15.1.10.8
F5Big-Ip Analytics>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Application Visibility And Reporting>= 15.1.0, < 15.1.10.8
F5Big-Ip Automation Toolchain>= 15.1.0, < 15.1.10.8
F5Big-Ip Carrier-Grade Nat>= 15.1.0, < 15.1.10.8
F5Big-Ip Container Ingress Services>= 15.1.0, < 15.1.10.8
F5Big-Ip Ddos Hybrid Defender>= 15.1.0, < 15.1.10.8
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.10.8
F5Big-Ip Edge Gateway>= 15.1.0, < 15.1.10.8
F5Big-Ip Fraud Protection Service>= 15.1.0, < 15.1.10.8
F5Big-Ip Global Traffic Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Link Controller>= 15.1.0, < 15.1.10.8
F5Big-Ip Local Traffic Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Policy Enforcement Manager>= 15.1.0, < 15.1.10.8
F5Big-Ip Ssl Orchestrator>= 15.1.0, < 15.1.10.8
F5Big-Ip Webaccelerator>= 15.1.0, < 15.1.10.8

Related Weaknesses (CWE)

CWE-459

References

FAQ

What is CVE-2025-59781?

CVE-2025-59781 is a vulnerability with a CVSS score of 7.5 (HIGH). When DNS cache is configured on a BIG-IP or BIG-IP Next CNF virtual server, undisclosed DNS queries can cause an increase in memory resource utilization.   Note: Software versions which have reached E...

How severe is CVE-2025-59781?

CVE-2025-59781 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-2025-59781?

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.