Vulnerability in Microsoft Outlook Express

CVE-1999-1033

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.

Published · last modified .

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.175 (97.0th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-1999-1033: held from 0.175 to 0.175.

EPSS over last 30 days · oldest: 0.175 · newest: 0.175 · change: 0.000

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-1999-1033?
CVE-1999-1033 is a vulnerability in Microsoft Outlook Express. Published 1999-05-11.
Is CVE-1999-1033 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.