---
id: CVE-2026-59260
title: >-
  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
summary: >-
  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 o…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
published: '2026-07-12'
updated: '2026-07-12'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59260'
references:
  - url: 'https://github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/openwrt-luci-app-samba4-read-acl-remote-code-execution-via-smbd
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-07-12T12:20:14.056Z'
epss: 0.00682
epssPercentile: 0.50373
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.