CVE-2026-49413 · Symaro Security Advisory

Description

The Linuxulator determined whether a binary was set-user-ID or set-group-ID by checking the P_SUGID process flag. During execve(2), this flag is not yet set at the point where the auxiliary vector is constructed, so AT_SECURE was incorrectly set to zero for set-user-ID and set-group-ID executables. An unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary.

Weaknesses

CWE-266 — CWE-266: Incorrect Privilege Assignment

Affected products

Vendor	Product	Versions
FreeBSD	FreeBSD	15.0-RELEASE to <p10; 14.4-RELEASE to <p6; 14.3-RELEASE to <p15

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:30.linux.asc (vendor-advisory)

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 27 Jun 2026 19:17 UTC.