CVE 5.4 MEDIUM

Use of weak cryptographic key in TP-Link Archer C7_CVE-2026-5363

5.4 / 10
MEDIUM
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Description

Inadequate Encryption Strength vulnerability in TP-Link Archer C7 v5 and v5.8 (uhttpd modules) allows Password Recovery Exploitation. The web interface encrypts the admin password client-side using RSA-1024 before sending it to the router during login. 
An adjacent attacker with the ability to intercept network traffic could potentially perform a brute-force or factorization attack against the 1024-bit RSA key to recover the plaintext administrator password, leading to unauthorized access and compromise of the device configuration.  This issue affects Archer C7: through Build 20220715.

Basic Information

ID CVE-2026-5363
Source TPLink
Published Apr 15, 2026 at 23:45

Affected Product

Vendor TP-Link Systems Inc.
Product Archer C7 v5 and v5.8
Affected Versions TP-Link Systems Inc. Archer C7 v5 and v5.8 0

CWE Classification

References

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