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CVE-2016-2217

20
FAUCET Score

CVE-2016-2217 describes a weakness in the OpenSSL address implementation within Socat versions 1.7.3.0 and 2.0.0-b8, where the Diffie-Hellman (DH) key exchange does not utilize a prime number, making it easier for attackers to deduce the shared secret. This vulnerability carries a CVSS v3 score of 5.3 (Medium), indicating a low-complexity network attack that could lead to a loss of confidentiality. Despite its potential impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.7.3.0CPE matchmatch criteria
cpe:2.3:a:dest-unreach:socat:1.7.3.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:dest-unreach:socat:2.0.0:b8:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 75th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2016-2217Moderate

socat: Hard coded 1024 bit DH p parameter was not prime

Feb 1, 2016

References

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