CVE-2026-1871
TP-Link
- Published
- 2 June 2026
- Last modified
- 22 July 2026
- CVSS
- 7.1 v4.0
- Severity
- high
- EPSS
- 0.3% (23th pct)
- CISA KEV
- Not listed
- NVD status
- Analyzed
- Weaknesses
- CWE-121
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.3% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Tapo C200 | TP-Link | unknown | 1.0.12, 1.0.13, 1.0.17, 1.0.5 +24 |
References
Vendor advisory and patch
- 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
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.