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CVE-2026-8697

Improper Authentication Rate Limiting on TP-Link's Archer C64

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.15.0 Build 250729 Rel.63489n(4555)
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Due to improper enforcement of authentication rate-limiting on a debug SSH service in Archer C64 v1, the SSH service allows unlimited authentication attempts and uses the same credentials as the web interface. This enables an attacker to brute-force valid credentials via SSH. Successful exploitation could allow an attacker with adjacent network access to obtain administrative credentials through unrestricted authentication attempts and subsequently gain full administrative access to the device, impacting system confidentiality, integrity, and availability.

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • TP-Link Systems Inc. Archer C64 v1.0

    fixed in 1.15.0 Build 250729 Rel.63489n(4555)

References 3

tp-link.com

GitHub · itzmetanjim/cve-2026-8697