CVE-2026-1871

Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200

Published Jun 2, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link tapo C200
Tp-link tapo C200 Firmware
CPEs cpe:2.3:h:tp-link:tapo_c200:5:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.0.12:build_240527:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.0.13:build_240619:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.0.17:build_240806:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.0.5:build_240327:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.1.4:build_241219:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.1.8:build_250310:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.2.3:build_250610:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.3.1:build_250910:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.3.3:build_251119:*:*:*:*:*:*
cpe:2.3:o:tp-link:tapo_c200_firmware:1.3.5:build_260228:*:*:*:*:*:*
Vendors & Products Tp-link tapo C200
Tp-link tapo C200 Firmware
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tapo C200 V5
Vendors & Products Tp-link
Tp-link tapo C200 V5
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Jun 2, 2026, 6:24 PM
Reserved
Feb 4, 2026, 12:03 AM
Status
Analyzed
Published
Jun 2, 2026, 5:16 PM
Modified
Jul 22, 2026, 7:10 PM