CVE-2026-55134
Microsoft Word Remote Code Execution vulnerability
MSRC advisory July 14, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-55134
- Affected products
- Microsoft Word Remote Code Execution · Microsoft Microsoft Word Remote Code Execution · Microsoft
What happened
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
What it means for your business
Microsoft Word Remote Code Execution vulnerability (CVE-2026-55134) was added to Microsoft’s security update guidance. Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Sources
Related briefs
Windows Device Health Attestation (DHA) Remote Code Execution vulnerability
Windows Device Health Attestation (DHA) Remote Code Execution vulnerability (CVE-2026-71331) was added to Microsoft’s security update guidance. Updated links to security updates. This is an informational change only. If you need help checking exposure, call (864) 335-9223.
Microsoft Word Information Disclosure vulnerability
Microsoft Word Information Disclosure vulnerability (CVE-2026-70105) was added to Microsoft’s security update guidance. Information published. This CVE was addressed by updates that were released in August 2026, but the CVE was inadvertently omitted from the August 2026 Security Updates. This is an informational change only. Customers who have already installed the August 2026 updates do not ne… If you need help checking exposure, call (864) 335-9223.
Azure Information Disclosure Vulnerability
Azure Information Disclosure Vulnerability (CVE-2026-69855) was added to Microsoft’s security update guidance. <p>Server-side request forgery (ssrf) in Microsoft Copilot in Azure allows an authorized attacker to disclose information over a network.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Entra ID Elevation of Privilege vulnerability
Microsoft Entra ID Elevation of Privilege vulnerability (CVE-2026-69851) was added to Microsoft’s security update guidance. <p>Server-side request forgery (ssrf) in Azure Active Directory allows an authorized attacker to elevate privileges over a network.</p> If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.