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CVE-2026-1871

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

Published: Jun 2, 2026Updated: Jun 4, 2026 Sources: CVE List NVDCWE-121
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 78.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-121

Affected Products

Tapo C200 v5TP-Link Systems Inc.Networking Infrastructure
tapo c200 firmwaretp-linkNetworking Infrastructure
tp-link systems inc.commercialCNNetworking Infrastructureaka tp-link
tp-linkcommercialTWNetworking Infrastructureaka tp-link, tp link

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
tp-link.com
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
tp-link.com
https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes
tp-link.com
and 1 more references View all →

Timeline

Published
Jun 2, 2026
Last Updated
Jun 4, 2026

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