CVE-2026-87692

Microsoft Exchange Server Elevation of Privilege Vulnerability

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS 2.3% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 5 more

CVE-2026-87695

Microsoft Exchange Server Elevation of Privilege Vulnerability

Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-96940

Microsoft Exchange Server Elevation of Privilege Vulnerability

Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 8.8 High EPSS 2.7% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-77910

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server 2016 Exchange Server 2019 Exchange Server Se and 4 more

CVE-2026-55007

Microsoft Exchange Server Remote Code Execution Vulnerability

Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2019 Exchange Server Se and 4 more

CVE-2026-69361

Microsoft Exchange Server Spoofing Vulnerability

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

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-69382

Microsoft Exchange Server Information Disclosure Vulnerability

Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-65813

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-62914

Microsoft Exchange Server Spoofing Vulnerability

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 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 5 more

CVE-2026-62913

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.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-62910

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 7.2 High EPSS 1.0% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-62915

Microsoft Exchange Server Security Feature Bypass Vulnerability

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

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-45503

Microsoft Exchange Server Information Disclosure Vulnerability

Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-45501

Microsoft Exchange Server Spoofing Vulnerability

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

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-45504

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.

CVSS 3.1 · 8.8 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-47631

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.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 5 more

CVE-2026-42897

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.

CVSS 3.1 · 8.1 High EPSS 70.7% KEV · Listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 5 more

CVE-2026-21527

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.

CVSS 3.1 · 6.5 Medium EPSS 8.1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more

CVE-2026-45500

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.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 6 more