CVE-2026-45254

Medium

Description

In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit that extended the permissions of the process.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Freebsd

PublishedMay 21, 2026

First seenMay 21, 2026

Weakness typeCWE-269Improper privilege management

How to fix

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-26:24.cap_net.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	14.3, 14.4, 15.0	—

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