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CRITICAL

CVE-2023-25076

CVSS v3

9.8

CRITICAL

EPSS Score

65.8 %

exploit probability, as of 2026-10-05

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2023-03-30

Frequently asked questions

What is CVE-2023-25076?

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.

Is CVE-2023-25076 actively exploited?

Active exploitation of CVE-2023-25076 has not been confirmed. Its EPSS score was 65.8% on 2026-10-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-25076?

CVE-2023-25076 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-25076 affecting your environment?

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