CVE-2026-7270

7.8 highEPSS 0.2%

High (7.8) in freebsd freebsd. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)
CWE: CWE-783
Published: 2026-04-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

freebsd:freebsd

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc
https://blog.calif.io/p/cve-2026-7270-how-i-get-root-on-freebsd
https://news.ycombinator.com/item?id=48077971

Check your stack JSON