High severity8.8NVD Advisory· Published Jul 12, 2026· Updated Jul 13, 2026

CVE-2026-59260

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.

Affected products

Openwrt/luci-app-samba4llm-create

Patches

Vulnerability mechanics

References

github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36cnvd
www.vulncheck.com/advisories/openwrt-luci-app-samba4-read-acl-remote-code-execution-via-smbdnvd

News mentions

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cvss	0.572
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000