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CVE-2026-18330 is a cryptographic implementation weakness in the web login module of TP-Link Archer AX55 hardware version V4 routers. The firmware embeds a shared hardcoded RSA-1024 private key used by the web authentication mechanism. The administration interface permits HTTP login traffic, allowing a local-network observer to capture an administrator login session and use the known private key to decrypt the administrator password. Weak AES session-key generation, reportedly caused by insufficient entropy during session initialization, further reduces the work required to compromise session confidentiality.
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No public exploit code observed for this vulnerability.
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7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity cryptographic and authentication flaw in the TP-Link Archer AX55 V4 web administration interface involving a firmware-embedded RSA-1024 private key, weak session-key handling, and unencrypted HTTP management sessions.
A Medium-severity cryptographic key exposure issue in the TP-Link Archer AX55 V4 web-login module. A hardcoded shared RSA-1024 private key and weak AES session key can allow a local attacker who captures an HTTP administrator session to recover administrator credentials.
A medium-severity authentication-session confidentiality flaw in the TP-Link Archer AX55 V4 web login module, caused by an embedded shared RSA-1024 private key and weakened by a weak AES session key. It allows a local attacker capturing an HTTP administrative login session to recover administrator credentials.
A hard-coded cryptographic-key vulnerability in the TP-Link Archer AX55 v4 web module. An attacker on the LAN who captures an HTTP administrator login session can leverage a shared RSA private key and weakened AES session key to decrypt the administrator password and compromise session confidentiality.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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