High severity8.1NVD Advisory· Published Jun 9, 2026· Updated Jun 9, 2026
CVE-2026-45503
CVE-2026-45503
Description
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
2- Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flawsBleepingComputer · Jun 9, 2026
- Microsoft Patch Tuesday June 2026 – 198 Vulnerabilities Fixed, Including 3 Zero-daysCyber Security News · Jun 9, 2026