What’s Vulnerable › Vulnerabilities
CVE-2026-1871: Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-02 · updated 2026-07-22
- Weakness: CWE-121
Description
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 exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This prevents legitimate users from accessing the camera’s live video stream or management interface until the service restarts.
Affected products
- TP-Link Systems Inc. Tapo C200 v5: 1.0.5-build_240327, 1.0.12-build_240527, 1.0.13-build_240619, 1.0.17-build_240806, 1.1.4-build_241219, 1.1.8-build_250310 (+4)
References
- https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
- https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes
- https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
- https://www.tp-link.com/us/support/faq/5113/
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