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CVE-2026-72840

OpenWrt LuCI luci-mod-system-mounts ACL Root RCE via Crontab Write PUBLISHED

Description (CNA)

OpenWrt LuCI contains an overly permissive ACL definition in luci-mod-system-mounts that grants write access to /etc/crontabs/root to users intended only for mount configuration. Authenticated users with only the mount-configuration ACL group can append arbitrary cron entries via ubus file.write, which the default busybox crond daemon executes as root within one minute.

Affected (CNA)

Vendor / productVersions
openwrt / luciaffected 0 through 24.10.8; affected 25.12.0 through 25.12.5

CWE

CWE-266

References

ADP enrichment

CISA-ADP

No English description supplied.