CVE-1999-1557

NONECVSS 0.0Weaponized

0.0

Buffer overflow in the login functions in IMAP server (imapd) in Ipswitch IMail 5.0 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via (1) a long user name or (2) a long password.

CVSS v3: —
EG Score: —
EPSS: 96.1%
KEV: Not listed

Published

May 2, 2005

Last Modified

April 16, 2026

References (4)

cve@mitrehttp://marc.info/?l=bugtraq&m=92038879607336&w=2
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/1895
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=92038879607336&w=2
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/1895

Data Freshness Timeline

(refreshed 13× in last 7d / 19× 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
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2026-05-26 07:16 UTCepss_batch
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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-19377✓ verified
First seen Mar 1, 1999
Ipswitch IMail 5.0 - Imapd Buffer Overflow (Denial of Service) (PoC)
Open source ↗

Frequently asked(4)

What is CVE-1999-1557?

CVE-1999-1557 is a none vulnerability published on May 2, 2005. Buffer overflow in the login functions in IMAP server (imapd) in Ipswitch IMail 5.0 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via (1) a long user name or (2) a long password.

When was CVE-1999-1557 disclosed?

CVE-1999-1557 was first published in the National Vulnerability Database on May 2, 2005, 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-1999-1557 actively exploited?

CVE-1999-1557 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1557?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1557, 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-1999-1557

📅 Published

🔄 Last Modified

🔗 References (4)