CVE-2020-10823 - Vulnerability Details - OpenCVE

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).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact total

Vendors	Products
Draytek	Vigor2960 Vigor2960 Firmware Vigor300b Vigor300b Firmware Vigor3900 Vigor3900 Firmware

Configuration 1 [-]

AND

cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:draytek:vigor3900_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor3900:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor2960:-:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://slashd.ga/2020/03/draytek-vulnerabilities/
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/

History

Mon, 05 May 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-03-26T16:04:38.000Z

Updated: 2025-05-05T17:09:19.117Z

Reserved: 2020-03-22T00:00:00.000Z

Link: CVE-2020-10823

Vulnrichment

Updated: 2024-08-04T11:14:15.581Z

NVD

Status : Modified

Published: 2020-03-26T17:15:23.203

Modified: 2025-05-05T17:15:54.437

Link: CVE-2020-10823

Redhat

No data.

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