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CVE-2026-5509 is an authenticated command injection vulnerability affecting TP-Link Archer BE450 v1 and Archer BE7200 v1 routers. The flaw resides in the web management interface, where crafted input supplied by an authenticated administrator can be passed to backend system command execution without adequate sanitization. The described exploitation path involves using the browser developer console to submit malicious input through the administrative interface. Successful exploitation allows arbitrary system command execution with elevated privileges on the device, creating a path to full compromise of the router operating environment.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity TP-Link router vulnerability allowing arbitrary system command execution on Archer BE450 v1 and Archer BE7200 v1 models; mentioned only in related content.
An authenticated command injection vulnerability in TP-Link Archer BE450 v1 and BE7200 v1 routers that allows arbitrary system command execution via the web management interface after authentication.
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.