Local privilege escalation via execve()

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Summary

CVECVE-2026-7270
StatePUBLISHED
Assignerfreebsd
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-30 07:16:41 UTC
Updated2026-04-30 07:16:41 UTC
DescriptionAn 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.

Risk And Classification

Problem Types: CWE-783 | CWE-783 CWE-783: Operator Precedence Logic Error

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA FreeBSD FreeBSD affected 15.0-RELEASE p7 release Not specified
CNA FreeBSD FreeBSD affected 14.4-RELEASE p3 release Not specified
CNA FreeBSD FreeBSD affected 14.3-RELEASE p12 release Not specified
CNA FreeBSD FreeBSD affected 13.5-RELEASE p13 release Not specified

References

ReferenceSourceLinkTags
security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc [email protected] security.freebsd.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Ryan Austin of Calif.io (en)

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