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Vulnerability record · CVE-2016-2217 · published 30 January 2017

CVE-2016-2217: Dest-unreach socat vulnerability

DDest Unreach · Socat

The OpenSSL address implementation in Socat 1.7.3.0 and 2.0.0-b8 does not use a prime number for the DH, which makes it easier for remote attackers to obtain the shared secret.

5.3 CVSS 3.0 Medium EPSS 2.5% · top 15.7% CWE-320 · CWE-320
5.3CVSS 3.0 base score, v2 5.0
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The OpenSSL address implementation in Socat 1.7.3.0 and 2.0.0-b8 does not use a prime number for the DH, which makes it easier for remote attackers to obtain the shared secret.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.dest-unreach.org/socat/contrib/socat-secadv7.html PatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/01/4 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/04/1 Third Party Advisory
https://security.gentoo.org/glsa/201612-23
http://www.dest-unreach.org/socat/contrib/socat-secadv7.html PatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/01/4 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/04/1 Third Party Advisory
https://security.gentoo.org/glsa/201612-23

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.2CVE-2026-56123Dest-unreach socat heap-based buffer overflow vulnerabilitysocat 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 ad…EPSS 0.55%7.5CVE-2015-1379Dest-unreach socat improper input validation vulnerabilityThe signal handler implementations in socat before 1.7.3.0 and 2.0.0-b8 allow remote attackers to cause a denial of service (process freeze or crash).EPSS 3.9%6.8CVE-2010-2799Dest-unreach socat memory buffer overflow vulnerabilityStack-based buffer overflow in the nestlex function in nestlex.c in Socat 1.5.0.0 through 1.7.1.2 and 2.0.0-b1 through 2.0.0-b3, when bidirectional d…EPSS 2.8%6.2CVE-2012-0219Dest-unreach socat memory buffer overflow vulnerabilityHeap-based buffer overflow in the xioscan_readline function in xio-readline.c in socat 1.4.0.0 through 1.7.2.0 and 2.0.0-b1 through 2.0.0-b4 allows l…EPSS 0.46%2.6CVE-2013-3571Dest-unreach socat vulnerabilitysocat 1.2.0.0 before 1.7.2.2 and 2.0.0-b1 before 2.0.0-b6, when used for a listen type address and the fork option is enabled, allows remote attacker…EPSS 2.1%1.9CVE-2014-0019Dest-unreach socat memory buffer overflow vulnerabilityStack-based buffer overflow in socat 1.3.0.0 through 1.7.2.2 and 2.0.0-b1 through 2.0.0-b6 allows local users to cause a denial of service (segmentat…EPSS 0.40%

Source: NIST National Vulnerability Database (record CVE-2016-2217), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.