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CVE-2026-67191

Xlight FTP Server < 3.9.5 Pre-Auth Heap Buffer Overflow via SSH Parser

Xlight FTP Server before 3.9.5 contains a pre-authentication heap buffer overflow vulnerability that allows remote unauthenticated attackers to write past the end of a heap buffer by sending a malformed SSH client identification string. A logic error in the recv loop's termination condition uses an incorrect OR operator where an AND operator is required, enabling exploitation on any SSH or SFTP connection before authentication occurs.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Xlightftpd
Products
Xlight Ftp Server
CVE-2026-65661

Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Office 2016 Office 2019 and 2 more
CVE-2026-64920

Microsoft Access Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Access Access 2016 and 4 more
CVE-2026-64914

Microsoft Access Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Access Access 2016 and 4 more
CVE-2026-63533

Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 6 more
CVE-2026-64906

Microsoft Access Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Access Access 2016 and 4 more
CVE-2026-62721

Windows User-Mode Power Service (UMPS) Elevation of Privilege Vulnerability

Insufficient granularity of access control in User-Mode Power Service (UMPS) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more