CVSS: 10.0EPSS: 3%CPEs: 10EXPL: 0CVE-2021-26894 – Windows DNS Server Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2021-26894
Windows DNS Server Remote Code Execution Vulnerability Una Vulnerabilidad de Ejecución de Código Remota del DNS Server de Windows. Este ID de CVE es diferente de CVE-2021-26877, CVE-2021-26893, CVE-2021-26895, CVE-2021-26897 • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26894 •
CVSS: 9.8EPSS: 3%CPEs: 9EXPL: 0CVE-2021-26893 – Windows DNS Server Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2021-26893
Windows DNS Server Remote Code Execution Vulnerability Una Vulnerabilidad de Ejecución de Código Remota del DNS Server de Windows. Este ID de CVE es diferente de CVE-2021-26877, CVE-2021-26894, CVE-2021-26895, CVE-2021-26897 • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26893 •
CVSS: 6.2EPSS: 0%CPEs: 11EXPL: 0CVE-2021-26892 – Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2021-26892
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability Una Vulnerabilidad de Omisión de la Característica de Seguridad del Extensible Firmware Interface de Windows This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Windows kernel. The issue results from improper authorization logic when accessing files in the EFI partition. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26892 https://www.zerodayinitiative.com/advisories/ZDI-21-330 •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2021-26889 – Windows Update Stack Elevation of Privilege Vulnerability
https://notcve.org/view.php?id=CVE-2021-26889
Windows Update Stack Elevation of Privilege Vulnerability Una Vulnerabilidad de Elevación de Privilegios de la Pila de Windows Update This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within Windows Setup. By creating a directory junction, an attacker can abuse Windows Setup to create a file in an arbitrary location. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26889 https://www.zerodayinitiative.com/advisories/ZDI-21-328 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2021-26887 – Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
https://notcve.org/view.php?id=CVE-2021-26887
<p>An elevation of privilege vulnerability exists in Microsoft Windows when Folder redirection has been enabled via Group Policy. When folder redirection file server is co-located with Terminal server, an attacker who successfully exploited the vulnerability would be able to begin redirecting another user's personal data to a created folder.</p> <p>To exploit the vulnerability, an attacker can create a new folder under the Folder Redirection root path and create a junction on a newly created User folder. When the new user logs in, Folder Redirection would start redirecting to the folder and copying personal data.</p> <p>This elevation of privilege vulnerability can only be addressed by reconfiguring Folder Redirection with Offline files and restricting permissions, and NOT via a security update for affected Windows Servers. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26887 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •