Vulnerability in TP-Link Archer C7
CVE-2026-5363
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- TP-Link Archer C7 — versions 5.0, 5.80
- TP-Link Archer C7 Firmware
- TP-Link Systems Inc. Archer C7 V5 And V5.8 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Not Applicable)
Frequently asked questions
- What is CVE-2026-5363?
- CVE-2026-5363 is a high-severity vulnerability in TP-Link Archer C7, classified under Inadequate Encryption Strength. CVSS score: 8.8/10. Published 2026-04-16.
- How severe is CVE-2026-5363?
- High severity. CVSS v3 base score is 8.8 out of 10.