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Public security advisories

GTP Security Intelligence

Current vulnerabilities, known exploitation, Microsoft security updates, and practical guidance from Griffin Technology Partners.

Primary sources

Microsoft Security Response Center
CISA Known Exploited Vulnerabilities

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Vulnerability intelligence

Security bulletins

Last collection: October 9, 2026
Six-hour refresh · Public-source information only

571 bulletins · Page 21 of 24

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Critical
CVE-2026-54982Microsoft

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

CVSS
8.8
Update availability
Security update available

Affected: Windows 10 Version 1607 for 32-bit Systems · Windows 10 Version 1607 for x64-based Systems · +25 more

Updated

Critical
CVE-2026-54999Microsoft

Windows TCP/IP Remote Code Execution Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.

CVSS
8.8
Update availability
Security update available

Affected: Windows 10 Version 1607 for 32-bit Systems · Windows 10 Version 1607 for x64-based Systems · +25 more

Updated

Critical
CVE-2026-55008Microsoft

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
9.6
Update availability
Security update available

Affected: Microsoft Exchange Server 2016 Cumulative Update 23 · Microsoft Exchange Server 2019 Cumulative Update 14 · +2 more

Updated

Critical
CVE-2026-55022Microsoft

Microsoft Office Remote Code Execution Vulnerability

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS
7.8
Update availability
Security update available

Affected: Microsoft 365 Apps for Enterprise for 32-bit Systems · Microsoft 365 Apps for Enterprise for 64-bit Systems · +11 more

Updated

Sources & coverage

The collection starts with 90 days of Microsoft updates and CISA additions, plus older Microsoft vulnerabilities still listed by CISA. Older entries do not imply that a product remains supported. Counts describe this collection, not every vulnerability or any customer environment.

Microsoft Security Response Center (opens in a new tab)

Last successful check: October 9, 2026

CISA Known Exploited Vulnerabilities (opens in a new tab)

Last successful check: October 9, 2026

Managed by GTP?

Griffin Technology Partners managed customers may receive additional environment-specific security guidance and remediation assistance through their managed services relationship.

Security bulletins are provided for informational purposes and compiled from authoritative public sources. Vulnerability applicability varies by environment. Validate affected products, configuration, compatibility requirements, and vendor guidance before making production changes.