Description
A stack-based buffer overflow vulnerability was identified in the ONVIF SOAP XML Parser in Tapo C200 v3 and C520WS v2.6. When processing XML tags with namespace prefixes, the parser fails to validate the prefix length before copying it to a fixed-size stack buffer. It allowed a crafted SOAP request with an oversized namespace prefix to cause memory corruption in stack. An unauthenticated attacker on the same local network may exploit this flaw to enable remote code execution with elevated privileges, leading to full compromise of the device.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
TP-Link Systems Inc. Tapo C200 V3
Default version status: unaffected
0 to < V3_1.4.5 Build 251104affected
TP-Link Systems Inc. Tapo C520WS v2.6
Default version status: unaffected
0 to < 1.2.4 Build 260326 Rel.24666naffected
References
- https://www.tp-link.com/us/support/download/tapo-c200/v3/#Firmware-Release-Notes ↗
- https://www.tp-link.com/us/support/faq/4849/ ↗
- https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notes ↗
- https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes ↗
- https://www.tp-link.com/en/support/download/tapo-c200/v3/#Firmware-Release-Notes ↗