Socat is a lightweight command-line utility for establishing bidirectional data transfers between two independent data channels, widely used in systems administration and network troubleshooting for port forwarding, protocol bridging, and socket manipulation. The vendor's limited disclosure history reflects its narrowly scoped role, with observed issues classified under general categories rather than specific structural weaknesses. Live severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Socat over time
Signals from CVEs in this vendor scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-56123CRITICAL socat versions 1.8.0.0 through 1.8.1.1 contain a heap-based buffer overflow vulnerability that allows a malicious SOCKS5 proxy server to overwrite adjacent heap memory by exploitin | Jun 25, 2026 | 9.8 | 40 | NO | NO |
CVE-2004-1484MEDIUM Format string vulnerability in the _msg function in error.c in socat 1.4.0.3 and earlier, when used as an HTTP proxy client and run with the -ly option, allows remote attackers or | Dec 31, 2004 | 5.0 | 30 | NO | YES |
Signals from CVEs in this vendor scope (2 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Socat.
Media articles that mention a CVE ID that affects a product developed by Socat — matched by CVE ID, not by vendor name.