CVE-2020-1109
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk57th percentile - higher than 57% of all known CVEs
Summary
Elevation of privilege vulnerability in Windows Update Stack. An attacker who logs on can run a specially crafted application to execute code in kernel mode, allowing installation of programs, data modification, or creation of accounts with full user rights.
Risk Assessment
Full system compromise by a local user.
Recommendation
Install the security update that corrects how Windows Update Stack handles objects in memory.
Other vulnerabilities in Windows Update Stack
See all- CVE-2021-26889High
Elevation of privilege vulnerability in Windows Update Stack. Allows an attacker to gain elevated privileges.
- CVE-2021-1729High
Elevation of privilege vulnerability in Windows Update Stack Setup. An attacker could exploit it to gain elevated privileges on the system.
- CVE-2020-1110High
An elevation of privilege vulnerability in Windows Update Stack due to improper handling of objects in memory. An attacker could run arbitrary code in kernel mode, install programs, view, change or delete data, or create new accounts with full user rights.
Original NVD description (English source)
An elevation of privilege vulnerability exists when the Windows Update Stack fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows Update Stack handles objects in memory.