Summary
Microsoft Exchange Server contains a cross-site scripting vulnerability during web page generation in Outlook Web Access and when certain interaction conditions are met, arbitrary JavaScript can be executed in the browser context.
- Vendor
- Microsoft
- Product
- Microsoft
- Added to KEV
- May 15, 2026
- Remediation due
- May 29, 2026 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-79
- EPSS
- 70.7% as of Nov 12
In the news
- No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
- none recorded
References