VYPR
Critical severity9.8NVD Advisory· Published Jun 1, 2023· Updated Jun 17, 2026

CVE-2023-33778

CVE-2023-33778

Description

Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware versions below v1.4.0, Switches firmware versions below 2.6.7, and Myvigor firmware versions below 2.3.2 were discovered to use hardcoded encryption keys which allows attackers to bind any affected device to their own account. Attackers are then able to create WCF and DrayDDNS licenses and synchronize them from the website.

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Affected products

77

Patches

Vulnerability mechanics

References

1

News mentions

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