PT-2026-65837 · Xlight · Xlight Ftp Server

CVE-2026-67192 · Publicado 2026-07-29 · Atualizado 2026-07-29

Mitre

CVSS v3.1

8.1

Alta

Vetor base

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed directly to the GCM decrypt function, overwriting the stack cookie and return address to potentially achieve remote code execution before any authentication occurs.

Correção

Stack Overflow

Enumeração de Fraquezas

CWE-121

Identificadores relacionados

CVE-2026-67192

Produtos afetados

Xlight Ftp Server

Referências · 3

• https://vulncheck.com/advisories/xlight-ftp-server-pre-auth-stack-buffer-overflow-via-ssh-gcm-cipher · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-67192 · Nota de Segurança
• https://xlightftpd.com/whatsnew.htm · Nota