CVE-2020-5212

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In NetHack before 3.6.5, an extremely long value for the MENUCOLOR configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

VendorProductVersions
NetHackNetHack< 3.6.5

References

Timeline

Published
Jan 28, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-5212: Critical severity, CVSS 9.8 | Vulnix