Buffer overflow in Tp-link Tapo_c200
CVE-2026-1871
TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request. Successful expl…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (10.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tp-link Tapo_c200 — versions 5
- Tp-link Tapo_c200_firmware — versions 1.0.5, 1.0.12, 1.0.13
- Tp-link Systems Inc. Tapo C200 V5 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Release Notes, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Release Notes, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Release Notes, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-1871?
- CVE-2026-1871 is a medium-severity vulnerability in Tp-link Tapo_c200, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-06-02.
- How severe is CVE-2026-1871?
- Medium severity. CVSS v3 base score is 6.5 out of 10.