Is CVE-2012-4426 being actively exploited?

CVE-2012-4426 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-4426?

CVE-2012-4426 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2012-4426

MEDIUM · CVSS 6.8EPSS 4.7%EU EUVD

Multiple format string vulnerabilities in mcrypt 2.6.8 and earlier might allow user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving (1) errors.c or (2) mcrypt.c.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-134
EPSS score: 4.7% (92th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-4361)
Published: November 21, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4361 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

mcrypt / mcrypt
mcrypt / mcrypt
mcrypt / mcrypt
mcrypt / mcrypt
mcrypt / mcrypt

References

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

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