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VULNERABILITIES

CVE-2021-33315 Details

Description

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 PortID 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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.trendnet.com/support/view.asp?cat=4&id=81 CVEPatchVendor Advisory
https://www.trendnet.com/support/view.asp?cat=4&id=81 [email protected]PatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-33315
NVD Published Date:
May 11, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-33315 Details - Not Deferred