CVE-2020-37124
Critical · 9.8CVSS
9.8
EPSS
0.4%
Published
Feb 5, 2026
CISA due date
—
The record
B64dec 1.1.2 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler (SEH) with crafted input. Attackers can leverage an egg hunter technique and carefully constructed payload to inject and execute malicious code during base64 decoding process.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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