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CVE-1999-1033

MediumPublished

Microsoft Outlook Express before 4.72.3612.1700 allows a malicious user to send a message that contains a .., which can inadvertently cause Outlook to...

Published: Sep 12, 2001
Updated: Aug 1, 2024
Assigning CNA: mitre
Evidence observed: May 11, 1999

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS probability estimate

17.5%

Moderate · next 30 days

Percentile: 97.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Microsoft Outlook Express before 4.72.3612.1700 allows a malicious user to send a message that contains a .., which can inadvertently cause Outlook to re-enter POP3 command mode and cause the POP3 session to hang.

Sources

Microsoft Outlook Express 4.27.3110/4.72.3120 - POP Denial of ServiceExploit
Miquel van Smoorenburg · windows · May 11, 1999

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