An information disclosure vulnerability exists in Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (KASLR) bypass, aka "Win32k Information Disclosure Vulnerability." This affects Windows 10 Servers, Windows 10, Windows Server 2019
Published Dec 12, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.85%
Description
An information disclosure vulnerability exists in Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (KASLR) bypass, aka "Win32k Information Disclosure Vulnerability." This affects Windows 10 Servers, Windows 10, Windows Server 2019.
Affected products
-
- Version Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1809 for ARM64-based SystemsStatusaffectedConstraints-
- Version Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version (Server Core installation)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Windows 10 | n/a |
| |||||||||||||||||||||
| Microsoft | Windows 10 Servers | n/a |
| |||||||||||||||||||||
| Microsoft | Windows Server 2019 | n/a |
|
- 1803
- 1809
- 1803
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.85% (0.01849) | 78.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.85% (0.01849) | 76.26th | v5 (v2026.06.15) |
| Nov 12, 2025 | 1.62% (0.01622) | 81.25th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.49% (0.00488) | 63.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00061) | 27.91th | v3 (v2023.03.01) |
| Apr 12, 2024 | 0.06% (0.00061) | 24.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01410) | 72.96th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01410) | 72.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01410) | 70.94th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01410) | 50.00th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.70% (0.06701) | 83.28th | v1 |
| Jan 6, 2022 | 6.70% (0.06701) | 83.12th | v1 |
| Sep 1, 2021 | 6.70% (0.06701) | 91.08th | v1 |
| Apr 14, 2021 | 6.70% (0.06701) | 0.00th | v1 |
No CWE recorded.
References (2)
- http://www.securityfocus.com/bid/106095 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8637 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106095 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8637 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.