Security Briefs
Page 27 of 111.
Alerts tracked
2649
Security flaws we track for Upstate SC businesses.
Known exploited
503
On CISA’s list of vulnerabilities attackers are actively using. Patch these first.
New exploited this month
43
Fresh additions to that CISA list since the first of the month.Feeds last synced Aug 21, 2026, 6:00 AM UTC.
Showing page 27 (24 alerts) of 2649.
Windows Win32k Elevation of Privilege vulnerability
Windows Win32k Elevation of Privilege vulnerability (CVE-2026-56176) was added to Microsoft’s security update guidance. Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally. If you need help checking exposure, call (864) 335-9223.
Windows NTFS Elevation of Privilege vulnerability
Windows NTFS Elevation of Privilege vulnerability (CVE-2026-56175) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally. If you need help checking exposure, call (864) 335-9223.
Windows WebView Elevation of Privilege vulnerability
Windows WebView Elevation of Privilege vulnerability (CVE-2026-56173) was added to Microsoft’s security update guidance. Use after free in Windows WebView allows an authorized attacker to elevate privileges locally. If you need help checking exposure, call (864) 335-9223.
Windows Admin Center Elevation of Privilege vulnerability
Windows Admin Center Elevation of Privilege vulnerability (CVE-2026-56169) was added to Microsoft’s security update guidance. Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network. If you need help checking exposure, call (864) 335-9223.
Windows SMB Server Denial of Service vulnerability
Windows SMB Server Denial of Service vulnerability (CVE-2026-56168) was added to Microsoft’s security update guidance. Information published. If you need help checking exposure, call (864) 335-9223.
Microsoft SharePoint Server Elevation of Privilege vulnerability
Microsoft SharePoint Server Elevation of Privilege vulnerability (CVE-2026-56164) was added to Microsoft’s security update guidance. Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft SharePoint Server Spoofing vulnerability
Microsoft SharePoint Server Spoofing vulnerability (CVE-2026-56157) was added to Microsoft’s security update guidance. Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-56156) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Microsoft Active Directory Federation Services is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-56155). Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally. CISA remediation due date: 2026-07-28. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55949) was added to Microsoft’s security update guidance. Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55948) was added to Microsoft’s security update guidance. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55947) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution vulnerability
Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution vulnerability (CVE-2026-55944) was added to Microsoft’s security update guidance. Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55899) was added to Microsoft’s security update guidance. Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Information Disclosure vulnerability
Microsoft Excel Information Disclosure vulnerability (CVE-2026-55898) was added to Microsoft’s security update guidance. Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Outlook Copilot Tampering vulnerability
Outlook Copilot Tampering vulnerability (CVE-2026-55145) was added to Microsoft’s security update guidance. Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network. If you need help checking exposure, call (864) 335-9223.
Windows Cryptography API: Next Generation (CNG) Tampering vulnerability
Windows Cryptography API: Next Generation (CNG) Tampering vulnerability (CVE-2026-55144) was added to Microsoft’s security update guidance. Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Word Information Disclosure vulnerability
Microsoft Word Information Disclosure vulnerability (CVE-2026-55142) was added to Microsoft’s security update guidance. Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55141) was added to Microsoft’s security update guidance. Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Office Remote Code Execution vulnerability
Microsoft Office Remote Code Execution vulnerability (CVE-2026-55140) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Office Information Disclosure vulnerability
Microsoft Office Information Disclosure vulnerability (CVE-2026-55139) was added to Microsoft’s security update guidance. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Information Disclosure vulnerability
Microsoft Excel Information Disclosure vulnerability (CVE-2026-55138) was added to Microsoft’s security update guidance. Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55137) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.
Microsoft Excel Remote Code Execution vulnerability
Microsoft Excel Remote Code Execution vulnerability (CVE-2026-55136) was added to Microsoft’s security update guidance. Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally. If you need help checking exposure, call (864) 335-9223.