CVE-2026-59260

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductOpenwrt Luci

PublishedJul 12, 2026

First seenJul 12, 2026

Weakness typeCWE-269Improper privilege management

How to fix

Update

openwrt luci24.10.8, 25.12.5 or later

Vendor advisories

github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c

Affected products

Product	Affected versions	Fixed in
openwrt luci	v < 24.10.8, 25.12.0 ≤ v < 25.12.5	24.10.8, 25.12.5

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