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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeBSD | FreeBSD | 15.0-RELEASE – < p7, 14.4-RELEASE – < p3, 14.3-RELEASE – < p12, 13.5-RELEASE – < p13 | p7 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
babyshen/freebsd-CVE-2026-7270 ★ 0 · May 9, 2026
CVE-2026-7270 FreeBSD local privilege escalation via exec_args_adjust_args OOB memmove
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- WID-SEC-2026-1324 FreeBSD Project FreeBSD OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 3, 2026