CVE-2023-35311
CISA KEVPublished July 11, 2023 · Updated April 3, 2026
high
Official Description+
Microsoft Outlook contains a security feature bypass vulnerability that allows an attacker to bypass the Microsoft Outlook Security Notice prompt.
Affected Products
| Vendor | Product |
|---|---|
| Microsoft | Outlook |
Patch Status
Patch by 2023-08-01
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2023-35311.