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Vulnerability record · CVE-2026-1871 · published 2 June 2026

CVE-2026-1871: Tp-link tapo c200 firmware stack-based buffer overflow vulnerability

Tp Link · Tapo C200 Firmware

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.

7.1 CVSS 4.0 High EPSS 0.31% · top 79.2% CWE-121 · Stack-based buffer overflow
7.1CVSS 4.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
22 Jul 2026Last modified by NVD

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.

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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes Release Notes
https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes Release Notes
https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes Release Notes
https://www.tp-link.com/us/support/faq/5113/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-4045TP-Link Tapo C200 camera command injection in uhttpd allows unauthenticated RCEThe TP-Link Tapo C200 IP camera, firmware 1.1.15 and below, contains a command injection flaw (CWE-77) in the uhttpd binary, which runs as root by de…EPSS 72%analysed8.7CVE-2026-15315Tp-link tapo c120 firmware improper authentication vulnerabilityTapo C120 v1 and C200 v5 contain an improper authentication vulnerability within the login authentication verification module. An attacker on the loc…EPSS 0.30%8.7CVE-2025-8065Tp-link tapo c200 firmware stack-based buffer overflow vulnerabilityA stack-based buffer overflow vulnerability was identified in the ONVIF SOAP XML Parser in Tapo C200 v3 and C520WS v2.6. When processing XML tags wit…EPSS 0.53%8.7CVE-2025-14300Tp-link tapo c200 firmware missing authentication for critical function vulnerabilityThe HTTPS service on Tapo C200 v3, v5, C425 v1.2 and C100 v5  exposes a connectAP interface without proper authentication. An unauthenticated attacke…EPSS 0.37%7.1CVE-2026-15316Tp-link tapo c200 firmware improper input validation vulnerabilityAn improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5.…EPSS 0.24%7.1CVE-2026-12760Tp-link tapo c200 firmware allocation without limits vulnerabilityA denial-of-service (DoS) vulnerability has been identified in Tapo C200 v3 in the network packet handling logic due to improper handling of IPv4 fra…EPSS 0.36%7.1CVE-2025-14299Tp-link tapo c200 firmware allocation without limits vulnerabilityThe HTTPS server on Tapo C200 V3 does not properly validate the Content-Length header, which can lead to an integer overflow. An unauthenticated atta…EPSS 0.24%5.3CVE-2020-11445Tp-link nc450 firmware vulnerabilityTP-Link cloud cameras through 2020-02-09 allow remote attackers to bypass authentication and obtain sensitive information via vectors involving a Wi-…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2026-1871), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.