CVE-2026-5363— Use of weak cryptographic key in TP-Link Archer C7
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I. Basic Information for CVE-2026-5363
Vulnerability Information
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Vulnerability Title
Use of weak cryptographic key in TP-Link Archer C7
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的加密强度
Source: NVD (National Vulnerability Database)
Vulnerability Title
TP-LINK Archer C7 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK Archer C7是中国普联（TP-LINK）公司的一款无线路由器。 TP-LINK Archer C7 Build 20220715及之前版本存在安全漏洞，该漏洞源于加密强度不足，可能导致密码恢复攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TP-Link Systems Inc. | Archer C7 v5 and v5.8 | 0 ~ Build 20220715 | - |
II. Public POCs for CVE-2026-5363
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|---|
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IV. Related Vulnerabilities
Same vendor: TP-Link Systems Inc.
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Arbitrary File Reading Vulnerability in OpenVPN Module in TP - CVE-2026-30815
OS Command Injection Vulnerability in OpenVPN Module in TP-L
Same weakness: CWE-326
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V. Comments for CVE-2026-5363
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