Memory leak in FreeBSD - CVE-2026-2261
Published: February 10, 2026
Vulnerability identifier: #VU122566
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-2261
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due to the blocklistd(8) service leaks a socket descriptor for each adverse event report it receives. A remote attacker can perform a denial of service attack.
Affected software
FreeBSD
How to mitigate CVE-2026-2261
Install updates from vendor's website.