PT-2026-45796 · Tp Link Systems · Tapo C200 V5

Sumin Kim · Published 2026-06-02 · Updated 2026-06-02 · CVE-2026-1871

Mitre

CVSS v4.0

7.1

High

Base vector

AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-1871

Affected Products

Tapo C200 V5

References · 5

• https://tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes · Patch
• https://tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-1871 · Security Note
• https://tp-link.com/us/support/faq/5113 · Vendor Advisory
• https://tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes · Patch