CVE-2023-35311
Microsoft Outlook Security Feature Bypass Vulnerability
Microsoft Outlook Security Feature Bypass Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Outlook Security Feature Bypass Vulnerability
Microsoft Outlook Security Feature Bypass Vulnerability
- Record
CVE-2023-35311- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Weakness
- CWE-367
- Updated
- 2026-11-02
EUVDEUVD-2023-39314
Microsoft Outlook Security Feature Bypass Vulnerability
- Record
EUVD-2023-39314- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3w2f-j9r3-9h89
Microsoft Outlook Security Feature Bypass Vulnerability
Microsoft Outlook Security Feature Bypass Vulnerability
- Record
GHSA-3w2f-j9r3-9h89- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Outlook Security Feature Bypass Vulnerability
Microsoft Outlook contains a security feature bypass vulnerability that allows an attacker to bypass the Microsoft Outlook Security Notice prompt.
- Record
CVE-2023-35311- Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
Microsoft Outlook Security Feature Bypass Vulnerability
- Record
CVE-2023-35311- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-35311 is a high vulnerability (CVSS 8.8) in Microsoft Outlook, published July 11, 2023. CISA lists it as known to be exploited, since July 11, 2023. EUVD reports exploitation since July 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 15.5%, the 96th percentile. No source names a fixed version.