CVE-2025-57780
8.8F5 · F5OS-A and F5OS-C
A privilege escalation vulnerability in F5OS-A and F5OS-C systems allows authenticated local attackers to bypass security boundaries and gain elevated access.
Executive summary
An authenticated local privilege escalation vulnerability in F5 F5OS-A and F5OS-C systems poses a high risk to administrative security boundaries.
Vulnerability
The flaw is categorized as CWE-250 (Execution with Unnecessary Privileges), allowing an already authenticated user with local access to perform actions beyond their authorized security permissions.
Business impact
A successful exploit permits an attacker to cross critical security boundaries, potentially resulting in full system compromise or unauthorized administrative control. Given the CVSS score of 8.8, this vulnerability represents a severe threat to the integrity and confidentiality of the affected F5 hardware platforms, necessitating prompt remediation to prevent lateral movement or total system takeover.
Remediation
Immediate Action: Update F5OS-A and F5OS-C systems to the versions specified in the vendor advisory (K000156771) to resolve the privilege escalation flaw.
Proactive Monitoring: Audit local system access logs for unusual command execution patterns or attempts to access administrative functions by non-privileged accounts.
Compensating Controls: Restrict local system access to authorized personnel only and ensure the principle of least privilege is strictly enforced for all system users.
Exploitation status
Public Exploit Available: No
Analyst recommendation
This vulnerability presents a significant risk to the security posture of F5 appliances by allowing unauthorized privilege escalation. Security teams should prioritize the application of the vendor-provided security updates to all affected F5OS-A and F5OS-C instances to eliminate the underlying vulnerability and prevent potential exploitation.
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Sources
Originally found and disclosed by F5, per the CVE Program record.