Microsoft Outlook Express before 4.72.3612.1700 allows a malicious user to send a message…
Priority MEDIUM 40Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
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 now
EPSS 0.17503 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:outlook_express:*:*:*:*:*:*:*:* | up to 4.72.3612.1700 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:outlook_express:4.27.3110.1:*:*:*:*:*:*:* | 4.27.3110.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:outlook_express:4.72.3120.0:*:*:*:*:*:*:* | 4.72.3120.0 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:outlook_express:*:*:*:*:*:*:*:* Versions up to 4.72.3612.1700 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:outlook_express:4.27.3110.1:*:*:*:*:*:*:* Versions 4.27.3110.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:outlook_express:4.72.3120.0:*:*:*:*:*:*:* Versions 4.72.3120.0 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-1033
- 2026-10-03 Alias added: GHSA-935q-jf44-fq38
More Microsoft Outlook Express vulnerabilities
- TI-2004-00347 The MHTML protocol handler in Microsoft Outlook Express 5.5 SP2 through Outlook Express 6… CVSS 2.0HIGH 10.0
- TI-2007-03777 Heap-based buffer overflow in Microsoft Outlook Express 6 and earlier, and Windows Mail… CVSS 2.0HIGH 9.3
- TI-2005-01149 Stack-based buffer overflow in the news reader for Microsoft Outlook Express (MSOE.DLL)… CVSS 2.0HIGH 7.5
- TI-2010-00777 Integer overflow in inetcomm.dll in Microsoft Outlook Express 5.5 SP2, 6, and 6 SP1… CVSS 2.0HIGH 9.3
- TI-2010-03008 Untrusted search path vulnerability in wab.exe 6.00.2900.5512 in Windows Address Book in… CVSS 2.0HIGH 9.3
- TI-2007-03910 Argument injection vulnerability involving Microsoft Outlook and Outlook Express, when… CVSS 3.1HIGH 8.8
Sources
- CVE-1999-1033 · CVE Program
- CVE-1999-1033 · NVD
- FIRST EPSS
- GHSA-935q-jf44-fq38 · GitHub Advisory Database · CC BY 4.0
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