CVE-2026-59260 OpenWrt luci-app-samba4 read ACL remote code execution via smbd
Authenticated users can execute arbitrary commands as root by exploiting improper ACL permissions on the Samba daemon in OpenWrt.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59260?
CVE-2026-59260 is a high-severity vulnerability in openwrt luci, published on 12 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-59260?
How do I fix CVE-2026-59260?
No fix has been published for CVE-2026-59260 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59260 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59260 exists.
Sources
Also known as GHSA-7pqv-wj3v-fcq3.