What’s Vulnerable › Vulnerabilities

CVE-2020-29557: D-Link DIR-825 R1 Devices Buffer Overflow Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 55.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-29 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Dlink Dir-825 R1 Firmware: through 3.0.1

References

• https://shaqed.github.io/dlink/
• https://www.dlink.ru/ru/download2/5/19/2354/441/
• https://shaqed.github.io/dlink/
• https://www.dlink.ru/ru/download2/5/19/2354/441/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-29557

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