CVE-2026-48579 Microsoft Exchange Online Information Disclosure Vulnerability

Key Points:

• CVE-2026-48579 is an information disclosure vulnerability in Microsoft Exchange Online due to improper authorization.
• This vulnerability could allow unauthorized attackers to access sensitive information over a network, potentially compromising data confidentiality.
• It is recommended that organizations using Microsoft Exchange Online apply the latest security patches and monitor for any unusual access patterns.

Technical Details: CVE-2026-48579 allows attackers to exploit improper authorization mechanisms, leading to unauthorized information disclosure.

MITRE ATT&CK Techniques: None mentioned

IOCs Mentioned: None mentioned