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Microsoft update

KB5121573

Security Update

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Fixed in

Fixes 7 records

Priority HIGH 70

Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1HIGH 8.0 Network Low privileges User interaction EPSS 0.00694 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-294
Priority MEDIUM 42

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00936 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-918
Priority MEDIUM 42

Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00913 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-122
Priority MEDIUM 42

Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.01002 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-99
Priority LOW 34

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.

CVSS 3.1HIGH 7.3 Network Low privileges User interaction EPSS 0.00446 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-79
Priority LOW 33

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.

CVSS 3.1MEDIUM 6.5 Network Low privileges No interaction EPSS 0.01976 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-502
Priority LOW 30

Missing authorization in Microsoft Exchange Server allows an authorized attacker to bypass a security feature over a network.

CVSS 3.1MEDIUM 6.5 Network Low privileges No interaction EPSS 0.00644 Published 2026-08-11 Fixed in 15.01.2507.072, 15.02.1544.044 +2 CWE-862