Auth bypass in TP-Link Archer C64
CVE-2026-8697
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.
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: 0.004 (32.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.004 · change: -0.001
Affected products
- TP-Link Archer C64 — versions 1.0
- TP-Link Archer C64 Firmware — versions 1.15.0
- TP-Link Systems Inc. Archer C64 V1.0 — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-8697?
- CVE-2026-8697 is a high-severity vulnerability in TP-Link Archer C64, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2026-05-28.
- How severe is CVE-2026-8697?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-8697 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.