CVE-2020-29557
Published on January 29, 2021
An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.
Known Exploited Vulnerability
This D-Link DIR-825 R1 Through 3.0.1 Before 11/2020 Buffer Overflow vulnerability is part of CISA's list of Known Exploited Vulnerabilities. D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20 contain a vulnerability in the web interface allowing for remote code execution.
The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2020-29557 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. It has the highest possible exploitability rating (3.9). The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2020-29557 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2020-29557
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What versions are vulnerable to CVE-2020-29557?
Each of the following must match for the vulnerability to exist.