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CVE-2026-13385 is a critical vulnerability affecting certain CN SKU ASUS routers running ASUSWRT firmware in the 3.0.0.4_386, 3.0.0.4_388, and 3.0.0.6_102 branches when the UU feature is present. The flaw is described as improper certificate validation together with improper validation of integrity check values during router communication with a server used by the feature. A network-positioned attacker can spoof the expected server response and cause the router to download and execute attacker-controlled commands. The issue is unauthenticated and results in command execution on the router through a man-in-the-middle attack path.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity improper input validation vulnerability in ASUS router management components that can enable unauthenticated remote command execution on affected ASUS routers.
A high-severity improper input validation vulnerability in ASUS router management components that can enable unauthenticated remote command execution on affected ASUS routers.
A critical certificate validation failure in the UU feature of CN SKU ASUSWRT router firmware that allows a network-positioned attacker to spoof the update server and execute attacker-supplied commands.
A critical improper certificate validation vulnerability in the UU feature of CN SKU ASUSWRT firmware that could allow a remote man-in-the-middle attacker to cause the router to download and execute arbitrary commands from a spoofed server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.