Authenticated Command Injection in TP-Link Archer BE450 v1 and BE7200 v1
CVE-2026-5509 is an authenticated command injection vulnerability affecting TP-Link Archer BE450 v1 and BE7200 v1 routers. According to the provided content, after authenticating to the router’s web management interface as an administrator, an attacker can use crafted input via the browser developer console that is passed to backend system commands without adequate sanitization. This insufficient neutralization of special elements in OS command construction allows arbitrary system command execution on the device. The issue affects versions below 1.3.0 Build 20260416.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
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.