Stack-based Buffer Overflow in Draytek Vigor Devices
CVE-2020-10823

9.8CRITICAL

Key Information:

Vendor

Draytek
Status
Vigor300b Firmware
Vendor
CVE Published:
26 March 2020

What is CVE-2020-10823?

A stack-based buffer overflow vulnerability has been identified in Draytek Vigor3900, Vigor2960, and Vigor300B devices prior to version 1.5.1. This security flaw resides in the /cgi-bin/activate.cgi component, which processes the 'var' parameter. Attackers can exploit this vulnerability to execute arbitrary code remotely through crafted HTTP requests, potentially compromising the affected devices.

References

https://slashd.ga/2020/03/draytek-vulnerabilities/
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https://www.draytek.com/about/security-advisory/vigor3900...
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CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.