Is CVE-2012-4426 in the CISA KEV catalog?

No. CVE-2012-4426 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-4426?

CVE-2012-4426 has a CVSS v2 base score of 6.8 (MEDIUM).

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

CVE-2012-4426 has an EPSS score of 4.70% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-4426?

Upgrade mcrypt on debian 11 to 2.6.8-1.1 or later.

CVE & CISA-KEV Catalog

CVE-2012-4426

MEDIUMEPSS 91th pctl

6.8

CVSS v2

NVD

Description

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.

CWE-134

How to fix

Remediation Available

mcryptDebian

Fixed in:2.6.8-1.1CVE-2012-4426

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.70%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Other references5

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.