CVE-2026-59260 | OpenWrt luci-app-samba4 read ACL grants file.exec permission… | CVSS 8.8 HIGH

Description

OpenWrt luci-app-samba4 read ACL grants file.exec permission on /usr/sbin/smbd, allowing authenticated delegated users to execute the Samba daemon with caller-controlled command-line arguments. Attackers can pass arbitrary Samba global options such as message command to a root smbd process, triggering command execution when SMB protocol messages are processed.

Metadata

CVE ID: CVE-2026-59260
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-04 12:17 UTC
Published: 2026-07-12 12:06 UTC
Last updated: 2026-07-12 12:06 UTC
Primary CWE: CWE-269
Improper Privilege Management
Vendor / Product: openwrt / luci
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
openwrt	luci	—	—

Weakness (CWE)

CWE	Source	Description
CWE-269	cna	Improper Privilege Management

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (2)

GitHub Security Advisory (GHSA-vx64-mmp7-h36c) https://github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c
VulnCheck Advisory: OpenWrt luci-app-samba4 read ACL remote code execution via smbd https://www.vulncheck.com/advisories/openwrt-luci-app-samba4-read-acl-remote-code-execution-via-smbd