OCTOBER 10, 2026
Live Feed
Back to database
Case File

CVE-2026-55897

HIGH · CVSS 8.8 EPSS 0.65% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-21 · Last synced 2026-10-10

CyberRota Analysis

AI-Generated

The luci-app-advanced-reboot for OpenWrt is vulnerable due to improper access control, allowing authenticated users to execute arbitrary commands as root through the web interface. This high-severity flaw can lead to unauthorized system modifications and potential compromise of the router's integrity. Users running versions prior to 1.1.2-6 should prioritize updating to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55897
Severity
HIGH
CVSS
8.8
EPSS
0.65%

Original NVD Description

luci-app-advanced-reboot is a LuCI (web interface) application for OpenWrt that provides a way to reboot your router into an alternative firmware partition or perform reboot operations directly from the web UI. Prior to 1.1.2-6, the luci-app-advanced-reboot read ACL in applications/luci-app-advanced-reboot/root/usr/share/rpcd/acl.d/luci-app-advanced-reboot.json grants rpcd file.exec permission for the general shell interpreter /bin/sh. An authenticated delegated session with that read ACL can supply caller-controlled params; rpcd authorizes the executable path and passes those arguments to the shell, allowing arbitrary commands to execute as root. Builds without the /bin/sh exec grant, including the checked openwrt-24.10 and openwrt-23.05 branches, are not affected by this specific chain. This vulnerability is fixed in 1.1.2-6.