Important CVSS 7.8 EPSS 0.00827 2019-11 archive

Executive Summary

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver 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 that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory.

Overview

7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
Category Elevation of Privilege
Released Nov 12 2019
Last Updated Nov 12 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00827 — 0.53706 percentile
NVD CVSS 7.8 HIGH — differs from MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.3

EPSS Score

0.00827
probability of exploitation in the next 30 days
0.53706 percentile - updated 2026-07-25
View on FIRST.org

Affected Products

3 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 4525232 (Security Update) Important Elevation of Privilege Yes
Windows 10 for x64-based Systems 4525232 (Security Update) Important Elevation of Privilege Yes
Windows 7 for 32-bit Systems Service Pack 1 4525235 (Monthly Rollup) 4525233 (Security Only) Important Elevation of Privilege 4519976 Base: 7.0 Temporal: 6.3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 7 for x64-based Systems Service Pack 1 4525235 (Monthly Rollup) 4525233 (Security Only) Important Elevation of Privilege 4519976 Base: 7.0 Temporal: 6.3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for 32-bit systems 4525243 (Monthly Rollup) 4525250 (Security Only) Important Elevation of Privilege 4520005 Base: 7.0 Temporal: 6.3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4525243 (Monthly Rollup) 4525250 (Security Only) Important Elevation of Privilege 4520005 Base: 7.0 Temporal: 6.3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows RT 8.1 4525243 (Monthly Rollup) Important Elevation of Privilege Yes

Patches

2 patches
Article Type Restart
4525232 Security Update Yes
4525243 Monthly Rollup Yes

Known Exploits

Acknowledgments

Guopengfei from Codesafe Team of Legendsec at Qi'anxin Group