CVE-2026-1871
Last modified
CVE-2026-1871 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Tp-Link | Tapo C200 Firmware | 1.0.5 | Build 240327 |
| Tp-Link | Tapo C200 Firmware | 1.0.12 | Build 240527 |
| Tp-Link | Tapo C200 Firmware | 1.0.13 | Build 240619 |
| Tp-Link | Tapo C200 Firmware | 1.0.17 | Build 240806 |
| Tp-Link | Tapo C200 Firmware | 1.1.4 | Build 241219 |
| Tp-Link | Tapo C200 Firmware | 1.1.8 | Build 250310 |
| Tp-Link | Tapo C200 Firmware | 1.2.3 | Build 250610 |
| Tp-Link | Tapo C200 Firmware | 1.3.1 | Build 250910 |
| Tp-Link | Tapo C200 Firmware | 1.3.3 | Build 251119 |
| Tp-Link | Tapo C200 Firmware | 1.3.5 | Build 260228 |
References
- https://www.tp-link.com/us/support/faq/5113/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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