CVE-2020-29557 | BDVDB-2026-148290 Detail

D-LinkDIR-825 R1 Devices

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References#

Exploit#

No public exploit known

History#

Version 12021-01-29Record published in the CVE List.
Version 22025-10-21Most recent update recorded in the CVE List.

Published

Published: 2021-01-29
Last modified: 2025-10-21

Vendor information

Vendor: D-Link
Product: DIR-825 R1 Devices

All D-Link vulnerabilities

Score

9.8 Critical

EPSS

55.7%, High

Estimated chance of exploitation in the next 30 days. EPSS percentile: 99.0.

KEV

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

Apply updates per vendor instructions.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).