TRENDnet TI-PG1284i prior 2.0.2.S0 lldp memcpy integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in TRENDnet TI-PG1284i. It has been declared as critical. Affected by this vulnerability is the function memcpy of the component lldp. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 05/12/2022. It is possible to read the advisory at This vulnerability is known as CVE-2021-33316 since 05/20/2021. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.0.2.S0 eliminates this vulnerability.





  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍


Class: Integer underflow
CWE: CWE-191 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TI-PG1284i 2.0.2.S0


05/20/2021 🔍
05/12/2022 +357 days 🔍
05/12/2022 +0 days 🔍
05/14/2022 +2 days 🔍


Status: Confirmed

CVE: CVE-2021-33316 (🔍)


Created: 05/12/2022 12:04 PM
Updated: 05/14/2022 02:00 PM
Changes: 05/12/2022 12:04 PM (39), 05/14/2022 02:00 PM (1)
Complete: 🔍


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