CVE-2023-35311
Actively exploited. CVE-2023-35311 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-07-11) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Microsoft Outlook contains a security feature bypass vulnerability that allows an attacker to bypass the Microsoft Outlook Security Notice prompt.
CSIRTS triage
- What
- A security feature bypass vulnerability allows an attacker to bypass security prompts.
- Who is affected
- Users of Microsoft Outlook with the vulnerable version.
- Urgency
- Remediation is critical due to active exploitation of the vulnerability.
- Action
- Update Microsoft Outlook to the latest version to address the issue.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 96% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2023-35311: Microsoft Outlook Security Feature Bypass Vulnerabilitycisa-kev · 2023-07-11
External references
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