SB2025121716 - Remote code execution via ND6 router advertisements in FreeBSD
Published: December 17, 2025 Updated: February 13, 2026
Security Bulletin ID
SB2025121716
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) OS command injection (CVE-ID: CVE-2025-14558)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation within the rtsold(8) and rtsol(8) scripts when processing the domain search list options provided in IPv6 router advertisement messages. A remote unauthenticated attacker in the same network segment can send specially crafted ND6 router advertisements and execute arbitrary OS commands on the system.
Remediation
Install update from vendor's website.