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CVE-2026-59260— OpenWrt luci-app-samba4 read ACL remote code execution via smbd

Quick assessment

Affected
openwrt luci
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenWRT luci是OpenWRT社区开源的一款路由器配置界面。 OpenWRT luci存在权限许可和访问控制问题漏洞，该漏洞源于luci-app-samba4的读ACL在/usr/sbin/smbd上授予file.exec权限，允许经过身份验证的委托用户通过调用者控制的命令行参数执行Samba守护程序，攻击者可将任意Samba全局选项（如消息命令）传递给root smbd进程，在处理SMB协议消息时触发命令执行。

CVSS 8.8 · High EPSS 0.68% · P51

Affected Version Matrix 1

VendorProduct Version RangeStatus
openwrt luci any affected
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I. Basic Information for CVE-2026-59260

Vulnerability Information
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Vulnerability Title
OpenWrt luci-app-samba4 read ACL remote code execution via smbd
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenWRT luci 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenWRT luci是OpenWRT社区开源的一款路由器配置界面。 OpenWRT luci存在权限许可和访问控制问题漏洞，该漏洞源于luci-app-samba4的读ACL在/usr/sbin/smbd上授予file.exec权限，允许经过身份验证的委托用户通过调用者控制的命令行参数执行Samba守护程序，攻击者可将任意Samba全局选项（如消息命令）传递给root smbd进程，在处理SMB协议消息时触发命令执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openwrt luci - -

II. Public POCs for CVE-2026-59260

# POC Description Source Link Shenlong Link
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Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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Qwen3.6-35B-A3B · 8965 chars
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III. Intelligence Information for CVE-2026-59260

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Vendor Advisories for CVE-2026-59260 (2)

Same Patch Batch · openwrt · 2026-07-12 · 3 CVEs total

CVE-2026-61875 8.8 HIGH luci-app-upnp Stored XSS via UPnP Port Mapping Description
CVE-2026-61876 8.8 HIGH LuCI DHCPv6 Lease Hostname Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: luci
Same vendor: openwrt
Same weakness: CWE-269

V. Comments for CVE-2026-59260

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