Microsoft Windows
CVE-2019-0888 — ActiveX Data Objects (ADO) Remote Code Execution Vulnerability
Executive Summary
A remote code execution vulnerability exists in the way that ActiveX Data Objects (ADO) handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with the victim user’s privileges. An attacker could craft a website that exploits the vulnerability and then convince a victim user to visit the website. The security update addresses the vulnerability by modifying how ActiveX Data Objects handle objects in memory.
Overview
8.8
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.9
EPSS Score
0.11128
probability of exploitation in the next 30 days
0.95476 percentile - updated 2026-07-25
View on FIRST.org
Affected Products
25 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4503291 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 for x64-based Systems | 4503291 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4503267 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4503267 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1703 for 32-bit Systems | 4503279 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1703 for x64-based Systems | 4503279 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4503284 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4503284 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4503284 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4503286 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4503286 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4503286 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4503327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4503327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4503327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for 32-bit Systems | 4503293 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4503293 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4503293 (Security Update) |
Critical | Remote Code Execution | No |
| Windows 7 for 32-bit Systems Service Pack 1 4503292 (Monthly Rollup) 4503269 (Security Only) Critical Remote Code Execution 4499164 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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 4503292 (Monthly Rollup) 4503269 (Security Only) Critical Remote Code Execution 4499164 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for 32-bit systems 4503276 (Monthly Rollup) 4503290 (Security Only) Critical Remote Code Execution 4499151 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4503276 (Monthly Rollup) 4503290 (Security Only) Critical Remote Code Execution 4499151 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows RT 8.1 | 4503276 (Monthly Rollup) |
Critical | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 4503273 (Monthly Rollup) 4503287 (Security Only) Critical Remote Code Execution 4499149 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4503273 (Monthly Rollup) 4503287 (Security Only) Critical Remote Code Execution 4499149 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for Itanium-Based Systems Service Pack 2 4503273 (Monthly Rollup) 4503287 (Security Only) Critical Remote Code Execution 4499149 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 4503273 (Monthly Rollup) 4503287 (Security Only) Critical Remote Code Execution 4499149 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4503273 (Monthly Rollup) 4503287 (Security Only) Critical Remote Code Execution 4499149 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4503292 (Monthly Rollup) 4503269 (Security Only) Critical Remote Code Execution 4499164 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 4503292 (Monthly Rollup) 4503269 (Security Only) Critical Remote Code Execution 4499164 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4503292 (Monthly Rollup) 4503269 (Security Only) Critical Remote Code Execution 4499164 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 4503285 (Monthly Rollup) 4503263 (Security Only) Critical Remote Code Execution 4499171 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 (Server Core installation) 4503285 (Monthly Rollup) 4503263 (Security Only) Critical Remote Code Execution 4499171 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 4503276 (Monthly Rollup) 4503290 (Security Only) Critical Remote Code Execution 4499151 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 (Server Core installation) 4503276 (Monthly Rollup) 4503290 (Security Only) Critical Remote Code Execution 4499151 Base: 8.8 Temporal: 7.9 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2016 | 4503267 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 4503267 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 | 4503327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 4503327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4503286 (Security Update) |
Critical | Remote Code Execution | Yes |
| Windows Server, version 1903 (Server Core installation) | 4503293 (Security Update) |
Critical | Remote Code Execution | No |
Patches
8 patches
| Article | Type | Restart |
|---|---|---|
4503291 |
Security Update | Yes |
4503267 |
Security Update | Yes |
4503279 |
Security Update | Yes |
4503284 |
Security Update | Yes |
4503286 |
Security Update | Yes |
4503327 |
Security Update | Yes |
4503293 |
Security Update | Yes |
4503276 |
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
Yaniv Frank of SophosLabs
References
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