CVE-2026-56123: socat 1.8.0.0 - 1.8.1.1 Heap Buffer Overflow via SOCKS5 Reply Parser
Overview
- Severity
- High (CVSS 8.1)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Jun
- Released
- 2026-06-27
- EPSS Score
- 0.31% (percentile: 23.2%)
Affected Products (1)
Mariner
- azl3 socat 1.7.4.4-2 on Azure Linux 3.0
Revision History
- 2026-06-27: Information published.