Is CVE-2020-29557 actively exploited?

CVE-2020-29557 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2020-29557?

CVE-2020-29557 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2020-29557?

Patch guidance is available from dlink security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-29557.

Which products are affected by CVE-2020-29557?

1 product: dlink dir-825 r1 firmware.

Fix CVE-2020-29557 - CRITICAL dlink dir-825 r1 firmware

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: DLINK
Published: 1/29/2021
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2020-29557

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary