Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1…
Priority MEDIUM 45CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-284.
Summary
Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1, Outlook 2016, and Outlook 2016 for Mac do not properly implement RFC 2046, which allows remote attackers to bypass virus or spam detection via crafted MIME data in an e-mail attachment, aka "Microsoft Office Spoofing Vulnerability."
Why it matters now
EPSS 0.16232 96th 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:outlook:2007:sp3:*:*:*:*:*:* | 2007 sp3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:* | 2010 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:macos:*:* | 2016 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:outlook:2007:sp3:*:*:*:*:*:* Versions 2007 sp3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:macos:*:* Versions 2016 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-3366
- 2026-10-03 Alias added: GHSA-mm4r-5hp7-v6q3
References
Advisory 1
More Microsoft Outlook vulnerabilities
- TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2023-17652 Microsoft Outlook Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
- TI-2007-00655 Unspecified vulnerability in Microsoft Excel 2000, XP, 2003, and 2004 for Mac, and… KEVCVSS 3.1HIGH 8.8
- TI-2017-08726 Memory corruption in Microsoft Outlook KEVCVSS 3.1HIGH 7.8
- TI-2015-01471 Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, Word 2013 RT SP1… KEVCVSS 3.1HIGH 7.8
- TI-2006-04695 Stack-based buffer overflow in the Vector Graphics Rendering engine (vgx.dll), as used in… CVSS 2.0HIGH 9.3
Sources
- CVE-2016-3366 · CVE Program
- CVE-2016-3366 · NVD
- FIRST EPSS
- GHSA-mm4r-5hp7-v6q3 · GitHub Advisory Database · CC BY 4.0
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