← Voltar para CVEs

CVE-2019-25634

HIGH

8.4

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.18.4

SeveridadeHIGH

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/24/2026

Ultima modificacao3/24/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-787

Referencias

http://4mhz.de/b64dec.html(disclosure@vulncheck.com)

http://4mhz.de/download.php?file=b64dec-1-1-2.zip(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/46625(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/base64-decoder-local-buffer-overflow-seh-egghunter(disclosure@vulncheck.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.