Vulnerability in Freebsd

CVE-2026-7270

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 superuse…

EPSS: 0.000 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Freebsd — versions 14.3, 13.5, 15.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-7270?
CVE-2026-7270 is a high-severity vulnerability in Freebsd, classified under CWE-783. CVSS score: 7.8/10. Published 2026-04-30.
How severe is CVE-2026-7270?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2026-7270 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.