CVE-2023-25076: Sniproxy Project Sniproxy

Critical severity, CVSS 9.8. EPSS: 65.8% chance of exploitation in the next 30 days.

A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.

Affected products

• Sniproxy Project Sniproxy: version 0.6.0-2 only; version 0.6.1 only

Published 2023-03-30. Last modified 2026-06-17.