CVE-2019-25634
High · 8.4CVSS
8.4
EPSS
0.3%
Published
Mar 24, 2026
CISA due date
—
The record
Base64 Decoder 1.1.2 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overwrite. Attackers can craft a malicious input file that overflows a buffer, overwrites the SEH chain with a POP-POP-RET gadget address, and uses an egghunter payload to locate and execute shellcode for code execution.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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