Microsoft Exchange Server vulnerabilities
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Published CVEs affecting Microsoft Exchange Server: 36 record(s), with affected versions and fixes.cpe:2.3:a:microsoft:exchange_server
CVE-2026-96940
High · 8.8
CWE-1390 Oct 2, 2026
Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate...
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-62911
High · 8.0
CWE-294 Aug 11, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-55005
High · 8.8
CWE-122 Jul 14, 2026
Microsoft Exchange Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
CVE-2026-47631
Medium · 5.4
CWE-79 Jun 9, 2026
Microsoft Exchange Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-45583
High · 8.1
CWE-94 Jun 9, 2026
Microsoft Exchange Server Remote Code Execution Vulnerability
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
CVE-2026-45504
High · 8.8
CWE-918 Jun 9, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-45503
Medium · 6.5
CWE-918 Jun 9, 2026
Microsoft Exchange Server Information Disclosure Vulnerability
Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
CVE-2026-45502
Medium · 5.0
CWE-918 Jun 9, 2026
Microsoft Exchange Server Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
CVE-2026-45501
Medium · 6.1
CWE-79 Jun 9, 2026
Microsoft Exchange Server Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
CVE-2026-45500
Medium · 6.1
CWE-79 Jun 9, 2026
Microsoft Exchange Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-42897
Medium · 6.1
KEV High · 50 Public exploit CWE-79 May 14, 2026
Microsoft Exchange Server Cross-Site Scripting Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-21527
Medium · 6.5
CWE-345 Feb 10, 2026
Microsoft Exchange Server Spoofing Vulnerability
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2025-64667
Medium · 5.3
CWE-451 Dec 9, 2025
Microsoft Exchange Server Spoofing Vulnerability
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2025-64666
High · 7.5
CWE-20 Dec 9, 2025
Microsoft Exchange Server Elevation of Privilege Vulnerability
Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2025-59249
High · 8.8
CWE-1390 Oct 14, 2025
Microsoft Exchange Server Elevation of Privilege Vulnerability
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2025-59248
High · 7.5
CWE-20 Oct 14, 2025
Microsoft Exchange Server Spoofing Vulnerability
Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2025-53782
High · 7.8
CWE-303 Oct 14, 2025
Microsoft Exchange Server Elevation of Privilege Vulnerability
Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.
CVE-2024-21410
Critical · 9.8
KEV High · 68 Public exploit CWE-287 Feb 13, 2024
Microsoft Exchange Server Privilege Escalation Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2023-21529
High · 8.8
KEV High · 66 Ransomware CWE-502 Feb 14, 2023
Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2022-41080
High · 8.8
KEV Urgent · 72 Public exploit Ransomware Nov 9, 2022
Microsoft Exchange Server Privilege Escalation Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2022-41040
High · 8.8
KEV Urgent · 94 Public exploit Ransomware CWE-918 Oct 2, 2022
Microsoft Exchange Server Server-Side Request Forgery Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2022-41082
High · 8.0
KEV Urgent · 94 Public exploit Ransomware CWE-502 Oct 2, 2022
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-42321
High · 8.8
KEV Urgent · 84 Public exploit Ransomware Nov 9, 2021
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-34523
Critical · 9.0
KEV Urgent · 98 Public exploit Ransomware Jul 14, 2021
Microsoft Exchange Server Privilege Escalation Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2021-34473
Critical · 9.1
KEV Urgent · 100 Public exploit Ransomware CWE-918 Jul 14, 2021
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability