Microsoft Graphics Component
CVE-2019-1432 — DirectWrite Information Disclosure Vulnerability
Executive Summary
An information disclosure vulnerability exists when DirectWrite improperly discloses the contents of its memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage. The security update addresses the vulnerability by correcting how DirectWrite handles objects in memory.
Overview
6.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.0
EPSS Score
0.0521
probability of exploitation in the next 30 days
0.91631 percentile - updated 2026-07-25
View on FIRST.org
Affected Products
1 affected product
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 7 for 32-bit Systems Service Pack 1 4525235 (Monthly Rollup) 4525233 (Security Only) Important Information Disclosure 4519976 Base: 4.4 Temporal: 4.0 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows 7 for x64-based Systems Service Pack 1 4525235 (Monthly Rollup) 4525233 (Security Only) Important Information Disclosure 4519976 Base: 4.4 Temporal: 4.0 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows 8.1 for 32-bit systems 4525243 (Monthly Rollup) 4525250 (Security Only) Important Information Disclosure 4520005 Base: 4.4 Temporal: 4.0 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4525243 (Monthly Rollup) 4525250 (Security Only) Important Information Disclosure 4520005 Base: 4.4 Temporal: 4.0 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows RT 8.1 | 4525243 (Monthly Rollup) |
Important | Information Disclosure | Yes |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
4525243 |
Monthly Rollup | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
kdot working with Trend Micro's Zero Day Initiative
References
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