NoticeWare Email Server NG 5.1.2.2 allows remote attackers to cause a denial of service (crash) via multiple POP3 requests with a long PASS command.
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NoticeWare Email Server NG 5.1.2.2 allows remote attackers to cause a denial of service (crash) via multiple POP3 requests with a long PASS command.
February 19, 2009
April 23, 2026
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
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.
Noticeware E-mail Server 5.1.2.2 - 'POP3' Denial of Service
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CWE-20