CVE-2021-33317

HIGH
7.5
CVSS Score
Published: May 11, 2022 at 05:34 PM UTC
Updated: June 17, 2026 at 03:54 AM UTC
18 products affected across 1 vendorTeg 30102WS FirmwareTi G160I FirmwareTi PG541I Firmware

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
trendnet-teg-30102ws (same device)
All versions
trendnet-ti-g102i (same device)
All versions
trendnet-ti-g160i (same device)
All versions
trendnet-ti-g642i (same device)
All versions
trendnet-ti-pg102i (same device)
v < 2.0.2.s0
Affected range stops below 2.0.2.s0, so it looks safe — our inference, not a vendor statement
trendnet-ti-pg1284i (same device)
All versions
trendnet-ti-pg541i (same device)
All versions
trendnet-ti-rp262i (same device)
All versions
trendnet-tpe-30102ws (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card