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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.

PUBLISHED Reserved 2026-02-04 | Published 2026-06-02 | Updated 2026-06-02 | Assigner TPLink




HIGH: 7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-121 Stack-based buffer overflow

Product status

Default status
unaffected

Any version before 1.4.4 Build 260527 Rel.28339n
affected

Credits

Sumin Kim (@Shine) finder

References

www.tp-link.com/us/support/download/tapo-c200/v5/ patch

www.tp-link.com/en/support/download/tapo-c200/v5/ patch

www.tp-link.com/kr/support/download/tapo-c200/ patch

www.tp-link.com/us/support/faq/5113/ vendor-advisory

cve.org (CVE-2026-1871)

nvd.nist.gov (CVE-2026-1871)

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