Is CVE-2004-2303 in the CISA KEV catalog?

No. CVE-2004-2303 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-2303?

CVE-2004-2303 has a CVSS v2 base score of 3.6 (LOW).

What is the EPSS score for CVE-2004-2303?

CVE-2004-2303 has an EPSS score of 0.63% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-2303?

Upgrade mtools on debian 11 to 3.9.9 or later.

CVE & CISA-KEV Catalog

CVE-2004-2303

LOW

3.6

CVSS v2

NVD

Description

MTools Mformat before 3.9.9, when installed setuid root, creates files with world-readable and world-writable permissions, which allows local users to read and overwrite files.

How to fix

Remediation Available

mtoolsDebian

Fixed in:3.9.9CVE-2004-2303

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

0.63%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Patch2

Other references1

exchange.xforce.ibmcloud.com

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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.