Is CVE-2011-1923 being actively exploited?

CVE-2011-1923 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-1923?

CVE-2011-1923 has a CVSS 2.0 base score of 4.0 (MEDIUM).

CVE-2011-1923

MEDIUM · CVSS 4.0EPSS 1.3%EU EUVD

The Diffie-Hellman key-exchange implementation in dhm.c in PolarSSL before 0.14.2 does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-5095.

Key facts

CVSS score: 4.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:H/Au:N/C:P/I:P/A:N
Weakness (CWE): CWE-310
EPSS score: 1.3% (70th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-1921)
Published: June 20, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-1921 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

polarssl / polarssl
polarssl / polarssl
polarssl / polarssl
polarssl / polarssl
polarssl / polarssl
polarssl / polarssl
polarssl / polarssl
polarssl / polarssl

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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