CVE-2020-27384

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-06-09 · updated 2026-06-17
Weakness: CWE-276

Description

The Gw2-64.exe in Guild Wars 2 launcher version 106916 suffers from an elevation of privileges vulnerability which can be used by an "Authenticated User" to modify the existing executable file with a binary of his choice. The vulnerability exist due to the improper permissions, with the 'F' flag (Full Control) for 'Everyone' group, making the entire directory 'Guild Wars 2' and its files and sub-dirs world-writable.

Affected products

Arena Guild Wars 2: 106916

References

https://github.com/FreySolarEye/CVE/blob/master/Guild%20Wars%202%20-%20Local%20Privilege%20Escalation
https://github.com/FreySolarEye/CVE/blob/master/Guild%20Wars%202%20-%20Local%20Privilege%20Escalation

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