CVE-2021-33316

The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from an integer underflow vulnerability. This vulnerability exists in its lldp related component. Due to lack of proper validation on length field of ChassisID TLV, by sending a crafted lldp packet to the device, integer underflow would occur and the negative number will be passed to memcpy() later, which may cause buffer overflow or invalid memory access.

• CWE-20

• https://www.trendnet.com/support/view.asp?cat=4&id=81Patch, Vendor Advisory
• https://www.trendnet.com/support/view.asp?cat=4&id=81Patch, Vendor Advisory

Published

May 11, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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