High severity · published Jul 12, 2026
CVE-2026-59260
OpenWrt luci-app-samba4 read ACL remote code execution via smbd
8.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LU
luci · openwrt
before 24.10.8; 25.12.0 before 25.12.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59260
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59260
vendor-advisory
https://github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c
third-party-advisory
https://www.vulncheck.com/advisories/openwrt-luci-app-samba4-read-acl-remote-code-execution-via-smbd
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