High 7.1Published Jun 2, 2026

CVE-2026-1871Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

Does this affect you?

It affects TP-Link Systems Inc. Tapo C200 v5 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for TP-Link Systems Inc. Tapo C200 v5

Exploited in the last 30 days

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: 7.1 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TPLink
NVD analysis: Analyzed
Record last updated: Jun 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TP-Link Systems Inc. Tapo C200 v5 tp_link_systems:tapo_c200_v5 (from the name)	before 1.4.4 Build 260527 Rel.28339n	CNA record
tp-link tapo_c200_firmware tp-link:tapo_c200_firmware	1.0.5; 1.0.12; 1.0.13; 1.0.17; 1.1.4; 1.1.8; 1.2.3; 1.3.1; and 2 more ranges	NVD

References

References

https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes	patch, release-notes
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes	patch, release-notes
https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes	patch, release-notes
https://www.tp-link.com/us/support/faq/5113/	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.