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Dark ReadingMicrosoft Exchange Zero-Day Under Attack, No Patch Available

Exploited
Zeroday
First published (updated )
News
Dark Reading

Microsoft Exchange ServerMicrosoft Exchange Server Cross-Site Scripting Vulnerability

Risk 72
Severity
8.1
Exploited
First published (updated )
CVE-2026-42897

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 40
Severity
6.5
First published (updated )
CVE-2026-21527

Microsoft Exchange ServerMicrosoft Exchange Server Elevation of Privilege Vulnerability

Risk 70
Severity
7.5
First published (updated )
CVE-2025-64666

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 27
Severity
5.3
First published (updated )
CVE-2025-64667
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Microsoft Exchange ServerMicrosoft Exchange Server Elevation of Privilege Vulnerability

Risk 74
Severity
8.4
First published (updated )
CVE-2025-53782

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 43
Severity
7.5
First published (updated )
CVE-2025-59248

Microsoft Exchange ServerMicrosoft Exchange Server Elevation of Privilege Vulnerability

Risk 79
Severity
8.8
First published (updated )
CVE-2025-59249

Microsoft Exchange ServerMicrosoft Exchange Server Tampering Vulnerability

Risk 38
Severity
6.5
First published (updated )
CVE-2025-25005

Microsoft Exchange ServerMicrosoft Exchange Server Information Disclosure Vulnerability

Risk 43
Severity
7.5
First published (updated )
CVE-2025-33051
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Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 27
Severity
5.3
First published (updated )
CVE-2025-25006

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 27
Severity
5.3
First published (updated )
CVE-2025-25007

Microsoft Exchange ServerMicrosoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability

Risk 72
Severity
8
First published (updated )
CVE-2025-53786

Microsoft Exchange Server subscriptionEnd of life details

First published (updated )
EOL-msexchange-subscription

Yemeni hacker (Rami Sanaa) Strikes with Black Kingdom: 1,500 U.S. Systems Hit via ProxyLogon Exploit

First published (updated )
Social
reddit
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BleepingComputerUS indicts Black Kingdom ransomware admin for Microsoft Exchange attacks

Exploited
First published (updated )
News
BleepingComputer

The RegisterFeds name and charge alleged Silk Typhoon spies behind years of China-on-US attacks

Zeroday
First published (updated )
News
The Register

Dark ReadingHow Public & Private Sectors Can Better Align Cyber Defense

Exploited
Zeroday
First published (updated )
News
Dark Reading

BleepingComputerMicrosoft: Outdated Exchange servers fail to auto-mitigate security bugs

First published (updated )
News
BleepingComputer

The RegisterProxyLogon, one of Salt Typhoon's favorites, still wide open

Exploited
First published (updated )
News
The Register
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Microsoft Exchange Server 2016Reached end of life

EOL
Oct 14, 2025
Support Ends
Oct 13, 2020
First published (updated )
EOL-msexchange-2016

Microsoft Exchange Server 2016Reached end of life

EOL
Oct 14, 2025
Support Ends
Oct 13, 2020
First published (updated )
latest-version-msexchange-2016

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 33
Severity
7.5
EPSS
5.63%
First published (updated )
CVE-2024-49040

The RegisterGermany warns of 17,000 unpatched Microsoft Exchange servers

First published (updated )
News
The Register

ZDNetEverything you need to know about the Microsoft Exchange Server hack

Zeroday
First published (updated )
News
ZDNet
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Microsoft Exchange ServerMicrosoft Exchange Server Remote Code Execution Vulnerability

Risk 56
Severity
8.8
EPSS
0.09%
First published (updated )
CVE-2024-26198

Microsoft Exchange ServerMicrosoft Exchange Server Privilege Escalation Vulnerability

Risk 88
Severity
9.8
Exploited
Zeroday
EPSS
0.09%
First published (updated )
CVE-2024-21410

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 73
Severity
8
First published (updated )
CVE-2023-36039

Microsoft Exchange Server 2019Microsoft Exchange Server Remote Code Execution Vulnerability

Risk 73
Severity
8
First published (updated )
CVE-2023-36439

Microsoft Exchange ServerMicrosoft Exchange Server Spoofing Vulnerability

Risk 73
Severity
8
First published (updated )
CVE-2023-36050
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