Tapo C100/C101 V5 contains a heap-based buffer overflow vulnerability in the RTSP service. An authenticated attacker on the local network can send specially crafted RTSP frame data containing oversized length values, resulting in out-of-bounds heap writes. Successful exploitation can crash the RTSP service and trigger a device reboot, resulting in a temporary denial-of-service condition.
https://www.tp-link.com/us/support/faq/5251/
https://www.tp-link.com/us/support/download/tapo-c101/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c100/#Firmware-Release-Notes
https://www.tp-link.com/en/support/download/tapo-c100/#Firmware-Release-Notes
Published: 2026-08-19
Updated: 2026-09-04
Base Score: 5.5
Vector: CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:C
Severity: Medium
Base Score: 5.7
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00217