HIGH

CVE-2026-55897

CVSS v3

8.8

HIGH

EPSS Score

0.7 %

exploit probability, as of 2026-09-28

CISA KEV

known exploited

Exploitation

—

SSVC status

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

Technical details

Published: 2026-09-21
Last Modified: 2026-09-21

Frequently asked questions

What is CVE-2026-55897?

Is CVE-2026-55897 actively exploited?

Active exploitation of CVE-2026-55897 has not been confirmed. Its EPSS score was 0.7% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-55897?

CVE-2026-55897 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-55897 affecting your environment?

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