High severity7.5NVD Advisory· Published May 11, 2022· Updated Jun 17, 2026
CVE-2021-33317
CVE-2021-33317
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.
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Affected products
11- cpe:2.3:o:trendnet:teg-30102ws_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-g102i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-g160i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-g642i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-pg102i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-pg541i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:ti-rp262i_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:trendnet:tpe-30102ws_firmware:-:*:*:*:*:*:*:*
- TRENDnet/TI-PG1284i switchdescription
- Range: <2.0.2.S0
Patches
Vulnerability mechanics
References
1- www.trendnet.com/support/view.aspnvdPatchVendor Advisory
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