Brute Force Vulnerability in TP-Link Archer C64 SSH Service
CVE-2026-8697

8.7HIGH

Key Information:

Vendor

Tp-link Systems Inc.

Status
Archer C64 V1.0
Vendor
CVE Published:
28 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8697?

The TP-Link Archer C64 v1 contains a flaw in its debug SSH service that fails to enforce proper authentication rate-limiting. This vulnerability allows an attacker to execute unlimited authentication attempts using the same credentials as those utilized on the device's web interface. By gaining adjacent network access, an attacker can potentially brute-force valid SSH credentials, leading to unauthorized administrative access. Such exploitation poses significant risks to the confidentiality, integrity, and availability of the system's data and functions.

Affected Version(s)

Archer C64 v1.0 0 < 1.15.0 Build 250729 Rel.63489n(4555)

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

cve-2026-8697
Created by itzmetanjim

References

https://www.tp-link.com/en/support/download/archer-c64/v1...
patch
https://www.tp-link.com/us/support/faq/5105/
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tanjim Kamal
.