CVE-2021-33317

High

Description

The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from a null pointer dereference vulnerability. This vulnerability exists in its lldp related component. Due to fail to check if ChassisID TLV is contained in the packet, by sending a crafted lldp packet to the device, an attacker can crash the process due to null pointer dereference.

SeverityHigh
CVSS7.5
Exploit probability—
ProductTrendnet Ti-pg1284i Firmware
PublishedMay 11, 2022
First seenMay 11, 2022

How to fix

Update
  • trendnet ti-pg1284i_firmware2.0.2.s0 or later

Affected products

ProductAffected versionsFixed in
trendnet ti-pg1284i_firmwarev < 2.0.2.s02.0.2.s0
trendnet ti-g102i_firmwareNo range specified—
trendnet ti-g160i_firmwareNo range specified—
trendnet ti-g642i_firmwareNo range specified—
trendnet ti-pg102i_firmwareNo range specified—
trendnet ti-pg541i_firmwareNo range specified—
trendnet ti-rp262i_firmwareNo range specified—
trendnet teg-30102ws_firmwareNo range specified—
trendnet tpe-30102ws_firmwareNo range specified—

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CVE-2021-33317 · Trendnet Ti-pg1284i Firmware · Dark Radar