CVE-2003-0391

NONECVSS 0.0Weaponized

0.0

Format string vulnerability in Magic WinMail Server 2.3, and possibly other 2.x versions, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in the PASS command.

CVSS v3: —
EG Score: —
EPSS: 90.4%
KEV: Not listed

Published

July 2, 2003

Last Modified

April 16, 2026

References (4)

cve@mitrehttp://marc.info/?l=bugtraq&m=105370528428222&w=2
cve@mitrehttp://www.magicwinmail.net/changelog.asp
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=105370528428222&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.magicwinmail.net/changelog.asp

Data Freshness Timeline

(refreshed 12× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-42✓ verified
First seen Jun 11, 2003
Winmail Mail Server 2.3 Build 0402 - Remote Format String
Open source ↗

Frequently asked(4)

What is CVE-2003-0391?

CVE-2003-0391 is a none vulnerability published on July 2, 2003. Format string vulnerability in Magic WinMail Server 2.3, and possibly other 2.x versions, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in the PASS command.

When was CVE-2003-0391 disclosed?

CVE-2003-0391 was first published in the National Vulnerability Database on July 2, 2003, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2003-0391 actively exploited?

CVE-2003-0391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2003-0391?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-0391, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2003-0391

📅 Published

🔄 Last Modified

🔗 References (4)