CVE-2026-8697

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

Published May 28, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link archer C64 Firmware
Weaknesses CWE-306
CPEs cpe:2.3:h:tp-link:archer_c64:1.0:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_c64_firmware:1.15.0:*:*:*:*:*:*:*
Vendors & Products Tp-link archer C64 Firmware
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer C64
Vendors & Products Tp-link
Tp-link archer C64
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Improper Authentication Rate Limiting on TP-Link's Archer C64
Weaknesses CWE-288
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
May 29, 2026, 3:55 AM
Reserved
May 15, 2026, 4:35 PM
Status
Analyzed
Published
May 28, 2026, 5:16 PM
Modified
Oct 26, 2026, 1:10 PM