Critical severity9.8NVD Advisory· Published Mar 26, 2020· Updated Jun 17, 2026

CVE-2020-10823

Description

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).

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Draytek/Vigor2960 Firmware
cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:*
Range: <1.5.1
Draytek/Vigor300b Firmware
cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:*
Range: <1.5.1
Draytek/Vigor3900 Firmware
cpe:2.3:o:draytek:vigor3900_firmware:*:*:*:*:*:*:*:*
Range: <1.5.1
Draytek/Vigor3900, Vigor2960, and Vigor300B devicesdescription
Draytek/Vigor 300Bllm-fuzzy
Range: <1.5.1
Draytek/Vigor2962llm-fuzzy
Range: <1.5.1
Draytek/Vigor3900llm-fuzzy
Range: <1.5.1

Patches

Vulnerability mechanics

References

slashd.ga/2020/03/draytek-vulnerabilities/nvdExploitThird Party Advisory
www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/nvd

News mentions

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cvss	0.637
epss	0.004
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000