CVE-2026-1871
Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 2, 2026
- Updated
- Jun 2, 2026
- Reserved
- Feb 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | TPLink |
Weaknesses
- CWE-121 Stack-based buffer overflow
Affected Products
| Product | Versions |
|---|---|
Tapo C200 v5TP-Link Systems Inc. |
|
References
- https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notespatch
- https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notespatch
- https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notespatch
- https://www.tp-link.com/us/support/faq/5113/vendor-advisory
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