Is CVE-2003-0031 in the CISA KEV catalog?

No. CVE-2003-0031 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-0031?

CVE-2003-0031 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2003-0031?

CVE-2003-0031 has an EPSS score of 1.73% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2003-0031?

Upgrade libmcrypt on debian 11 to 2.5.5-1 or later.

CVE & CISA-KEV Catalog

CVE-2003-0031

HIGHEPSS 75th pctl

7.5

CVSS v2

NVD

Description

Multiple buffer overflows in libmcrypt before 2.5.5 allow attackers to cause a denial of service (crash).

How to fix

Remediation Available

libmcryptDebian

Fixed in:2.5.5-1CVE-2003-0031

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

1.73%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch1

debian.org

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 2026-04-16.