CVE-2019-19905

9.8 criticalEPSS 3.4%

Critical (9.8) in nethack nethack. EPSS 3.4% chance of exploitation in the next 30 days.

NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration files. This affects systems that have NetHack installed suid/sgid, and shared systems that allow users to upload their own configuration files.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2019-12-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nethack:nethack

References

https://bugs.debian.org/947005
https://github.com/NetHack/NetHack/commit/f001de79542b8c38b1f8e6d7eaefbbd28ab94b47
https://github.com/NetHack/NetHack/commit/f4a840a48f4bcf11757b3d859e9d53cc9d5ef226
https://github.com/NetHack/NetHack/security/advisories/GHSA-3cm7-rgh5-9pq5
https://nethack.org/security/

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