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Vendor/product archive

microsoft / exchange_online CVEs

Beta · best-effort

4 CVEs tagged to microsoft / exchange_online — 3 Critical, 1 High, 0 Medium, 0 Low, 0 Unrated.

See this archive with more filtersBack to microsoft vendor archive

CVE-2026-56191

Published Jul 24, 2026

Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.

CVSS 10.0 · Critical
evidence mentions
1
Buzz score
11.9
Vendor/product tagsBeta · best-effort

CVE-2026-54998

Published Jul 2, 2026

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

CVSS 8.8 · High
evidence mentions
3
Buzz score
21.9
Vendor/product tagsBeta · best-effort

CVE-2026-48582

Published Jun 19, 2026

Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

CVSS 9.6 · Critical
evidence mentions
1
Buzz score
11.9
Vendor/product tagsBeta · best-effort

CVE-2026-48579

Published Jun 4, 2026

Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.

CVSS 9.1 · Critical
evidence mentions
3
Buzz score
21.9
Vendor/product tagsBeta · best-effort
Showing 1-4 of 4 CVEsPage 1 of 1