CVE-1999-1033: Microsoft Outlook Express before 4.72.3612.1700 allows a malicious user to send a message that contains a .., which can
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.
Why It Matters
UNKNOWN severity with CVSS n/a.
Current Status
- Vulnerability status: Not listed in CISA KEV
- Last intelligence update: 2026-08-21 · source: NVD
Entity Activity Timeline
- 2026-08-21 — Intelligence record updated（NVD sync）
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:46.319Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
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