CVE-2021-30184

PoC ×2—

CVSS 3.1

7.8 high

EPSS

2%p77

Published

Apr 7, 2021 (Apr 7, 2021)

Modified

Jun 17, 2026

Description

GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.

Vendors: gnu fedoraproject
Products: chess, fedora
Weakness: CWE-120
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.8%)

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