CVE-2021-36089

PoC —

CVSS 3.1

7.8 high

EPSS

1%p66

Published

Jul 1, 2021 (Jul 1, 2021)

Modified

Jun 17, 2026

Description

Grok 7.6.6 through 9.2.0 has a heap-based buffer overflow in grk::FileFormatDecompress::apply_palette_clr (called from grk::FileFormatDecompress::applyColour).

Vendors: zope
Products: grok
Weakness: CWE-787
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 (1.2%)

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