CVE-2026-7270

High

Description

An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve(2) argument buffers. The bug may be exploitable by an unprivileged user to obtain superuser privileges.

SeverityHigh

CVSS7.8

Exploit probability—

Product

Freebsd

PublishedApr 30, 2026

First seenApr 30, 2026

Weakness typeCWE-783CWE-783

How to fix

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	13.5, 14.3, 14.4, 15.0	—

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