What is the vulnerability ID for this issue?

The vulnerability ID is CVE-2020-10823.

What is the severity of CVE-2020-10823?

The severity of CVE-2020-10823 is critical with a CVSS score of 9.8.

Which devices are affected by CVE-2020-10823?

Draytek Vigor3900, Vigor2960, and Vigor300B devices before version 1.5.1 are affected by this vulnerability.

How can remote attackers exploit CVE-2020-10823?

Remote attackers can achieve code execution by sending a remote HTTP request through the var parameter in /cgi-bin/activate.cgi.

Are Draytek Vigor300B, Vigor3900, and Vigor2960 devices vulnerable?

Draytek Vigor300B, Vigor3900, and Vigor2960 devices are vulnerable to CVE-2020-10823 if they are running firmware versions before 1.5.1.

Vulnerability/
CVE-2020-10823

critical

9.8

CWE

787 119

26/3/2020

18/12/2024

CVE-2020-10823: Buffer Overflow

First published: Thu Mar 26 2020(Updated: )

A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Draytek Vigor300b Firmware	<1.5.1
Draytek Vigor300b
Draytek Vigor3900 Firmware	<1.5.1
DrayTek Vigor3900
Draytek Vigor2960 Firmware	<1.5.1
DrayTek Vigor2960

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Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID is CVE-2020-10823.
What is the severity of CVE-2020-10823?
The severity of CVE-2020-10823 is critical with a CVSS score of 9.8.
Which devices are affected by CVE-2020-10823?
Draytek Vigor3900, Vigor2960, and Vigor300B devices before version 1.5.1 are affected by this vulnerability.
How can remote attackers exploit CVE-2020-10823?
Remote attackers can achieve code execution by sending a remote HTTP request through the var parameter in /cgi-bin/activate.cgi.
Are Draytek Vigor300B, Vigor3900, and Vigor2960 devices vulnerable?
Draytek Vigor300B, Vigor3900, and Vigor2960 devices are vulnerable to CVE-2020-10823 if they are running firmware versions before 1.5.1.

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collector/nvd-index
agent/software-canonical-lookup-request
agent/severity
agent/weakness
agent/author
agent/softwarecombine
agent/first-publish-date
agent/description
agent/event
agent/tags
collector/mitre-cve
source/MITRE
vendor/draytek
canonical/draytek vigor300b firmware
canonical/draytek vigor300b
canonical/draytek vigor3900 firmware
canonical/draytek vigor3900
canonical/draytek vigor2960 firmware
canonical/draytek vigor2960

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