What’s Vulnerable › Vulnerabilities

CVE-2023-25076

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 65.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-03-30 · updated 2026-06-17
• Weakness: CWE-120

Description

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: 0.6.0-2, 0.6.1

References

• https://github.com/dlundquist/sniproxy/commit/f8d9a433fe22ab2fa15c00179048ab02ae23d583
• https://lists.debian.org/debian-lts-announce/2023/04/msg00030.html
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1731
• https://www.debian.org/security/2023/dsa-5413
• https://github.com/dlundquist/sniproxy/commit/f8d9a433fe22ab2fa15c00179048ab02ae23d583
• https://lists.debian.org/debian-lts-announce/2023/04/msg00030.html
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1731
• https://www.debian.org/security/2023/dsa-5413
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1731

Get alerted when CVE-2023-25076 or the next vulnerability affects your stack