SB2025101759 - Denial of service in BIG-IP or BIG-IP Next CNF DNS cache implementation
Published: October 17, 2025
Security Bulletin ID
SB2025101759
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incomplete cleanup (CVE-ID: CVE-2025-59781)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incomplete cleanup when handling DNS cache. A remote attacker can send specially crafted DNS packets to the system and perform a denial of service (DoS) attack.Remediation
Install update from vendor's website.