Is CVE-2020-8962 actively exploited?

No active exploitation of CVE-2020-8962 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-8962 be exploited remotely?

Yes. CVE-2020-8962 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-8962?

CVE-2020-8962 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-8962

CRITICAL

CVE-2020-8962

CWE-787Published: February 13, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A stack-based buffer overflow was found on the D-Link DIR-842 REVC with firmware v3.13B09 HOTFIX due to the use of strcpy for LOGINPASSWORD when handling a POST request to the /MTFWU endpoint.

NVD Source

Technical Analysis

CVE-2020-8962 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.