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-2026-87696

Microsoft Exchange Server Elevation of Privilege Vulnerability

Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 3 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-2026-70279

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 · 9.3 Critical EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server 2016 Exchange Server 2019 Exchange Server Se

CVE-2026-70571

Microsoft Exchange Server Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.1 High EPSS 1.4% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server 2016 Exchange Server 2019 Exchange Server Se

CVE-2026-69355

Microsoft Exchange Server Remote Code Execution Vulnerability

External control of file name or path 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 3 more

CVE-2026-69356

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 · 9.3 Critical EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 2 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-2026-69375

Microsoft Exchange Server Tampering Vulnerability

Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to perform tampering 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 2 more

CVE-2026-69378

Microsoft Exchange Server Denial of Service Vulnerability

Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 2 more

CVE-2026-69380

Microsoft Exchange Server Elevation of Privilege Vulnerability

Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges 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 2 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-2026-69641

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 2 more

CVE-2026-62911

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.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Exchange Server Exchange Server 2016 Exchange Server 2019 and 2 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