CVE-2020-1155
HighCVSS 7.8Exploitation Probability (EPSS)
High risk86th percentile - higher than 86% of all known CVEs
Summary
Elevation of privilege vulnerability in Windows Runtime due to improper handling of objects in memory. An attacker could run arbitrary code in an elevated context by running a specially crafted application.
Risk Assessment
Risk of privilege escalation and system compromise by malware.
Recommendation
Install the security update that corrects how Windows Runtime handles objects in memory.
Other vulnerabilities in Windows Runtime
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Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an authorized attacker to elevate privileges locally.
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Race condition vulnerability in Windows Runtime. An authenticated attacker can exploit concurrent execution with improper synchronization to elevate privileges locally.
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A race condition due to improper synchronization of shared resources in Windows Runtime allows an authorized attacker to elevate privileges locally.
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Use-after-free vulnerability in Windows Runtime allows an authorized attacker to elevate privileges locally.
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A race condition vulnerability in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.
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A use-after-free vulnerability in Windows Runtime allows an authorized attacker to elevate privileges locally.
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A race condition in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-50449High
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
- CVE-2026-50413High
Use-after-free vulnerability in Windows Runtime allows an authorized attacker to elevate privileges locally.
- CVE-2026-50410High
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.