MEDIUM
Microsoft splwow64 Information Disclosure Vulnerability
Published Sep 11, 2020
5.5
MEDIUMCVSS 3.1
EPSS 4.44%
Description
<p>An information disclosure vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system (low-integrity to medium-integrity).</p> <p>This vulnerability by itself does not allow arbitrary code execution; however, it could allow arbitrary code to be run if the attacker uses it in combination with another vulnerability (such as a remote code execution vulnerability or another elevation of privilege vulnerability) that is capable of leveraging the elevated privileges when code execution is attempted.</p> <p>The security update addresses the vulnerability by ensuring splwow64.exe properly handles these calls.</p>
Affected products
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 6.3.0StatusaffectedConstraints<publication
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- Version 6.2.0StatusaffectedConstraints<publication
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- Version 6.2.0StatusaffectedConstraints<publication
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- Version 6.3.0StatusaffectedConstraints<publication
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- Version 6.3.0StatusaffectedConstraints<publication
- Version
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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- Version 10.0.0StatusaffectedConstraints<publication
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Microsoft | Windows 10 Version 1507 | n/a |
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| Microsoft | Windows 10 Version 1607 | n/a |
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| Microsoft | Windows 10 Version 1709 | n/a |
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| Microsoft | Windows 10 Version 1709 for 32-bit Systems | n/a |
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| Microsoft | Windows 10 Version 1803 | n/a |
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| Microsoft | Windows 10 Version 1809 | n/a |
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| Microsoft | Windows 10 Version 1903 for 32-bit Systems | n/a |
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| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | n/a |
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| Microsoft | Windows 10 Version 1903 for x64-based Systems | n/a |
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| Microsoft | Windows 10 Version 1909 | n/a |
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| Microsoft | Windows 10 Version 2004 | n/a |
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| Microsoft | Windows 8.1 | n/a |
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| Microsoft | Windows Server 2012 | n/a |
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| Microsoft | Windows Server 2012 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2012 R2 | n/a |
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| Microsoft | Windows Server 2012 R2 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2016 | n/a |
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| Microsoft | Windows Server 2016 (Server Core installation) | n/a |
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| Microsoft | Windows Server 2019 | n/a |
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| Microsoft | Windows Server 2019 (Server Core installation) | n/a |
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| Microsoft | Windows Server version 2004 | n/a |
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| Microsoft | Windows Server, version 1903 (Server Core installation) | n/a |
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| Microsoft | Windows Server, version 1909 (Server Core installation) | n/a |
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OR
- n/a
- n/a
- 1607
- 1607
- 1709
- 1803
- 1809
- 1903
- 1909
- 2004
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- 1903
- 1909
- 2004
- 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.
5.5 MEDIUM NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
1 other source (CVE.org) ▾
5.5 MEDIUM CVE.org
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
Exploit Maturity Proof of Concept
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.44% 0.04441
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.04441
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (36 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 4.44% (0.04441) | 91.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.41% (0.04405) | 90.04th | v5 (v2026.06.15) |
| Jan 11, 2026 | 26.26% (0.26259) | 96.13th | v4 (v2025.03.14) |
| Dec 28, 2025 | 23.69% (0.23687) | 95.81th | v4 (v2025.03.14) |
| Dec 27, 2025 | 25.76% (0.25763) | 96.09th | v4 (v2025.03.14) |
| Oct 28, 2025 | 23.69% (0.23687) | 95.74th | v4 (v2025.03.14) |
| Oct 27, 2025 | 25.76% (0.25763) | 96.02th | v4 (v2025.03.14) |
| Oct 23, 2025 | 23.69% (0.23687) | 95.73th | v4 (v2025.03.14) |
| Jun 11, 2025 | 22.38% (0.22378) | 95.50th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.94% (0.08940) | 91.79th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.84% (0.15841) | 91.27th | v4 (v2025.03.14) |
| Mar 19, 2025 | 8.94% (0.08940) | 91.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.12% (0.10117) | 92.52th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.23% (0.03227) | 91.02th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.91% (0.00912) | 83.51th | v3 (v2023.03.01) |
| Jul 16, 2024 | 0.69% (0.00687) | 80.27th | v3 (v2023.03.01) |
| Jul 1, 2024 | 0.68% (0.00675) | 79.97th | v3 (v2023.03.01) |
| Apr 8, 2024 | 0.69% (0.00685) | 79.70th | v3 (v2023.03.01) |
| Mar 21, 2024 | 0.91% (0.00907) | 82.39th | v3 (v2023.03.01) |
| Mar 3, 2024 | 0.97% (0.00970) | 82.93th | v3 (v2023.03.01) |
| Feb 15, 2024 | 0.80% (0.00801) | 81.13th | v3 (v2023.03.01) |
| Jan 15, 2024 | 0.84% (0.00843) | 80.25th | v3 (v2023.03.01) |
| Jan 1, 2024 | 0.93% (0.00931) | 81.26th | v3 (v2023.03.01) |
| Sep 29, 2023 | 1.67% (0.01668) | 86.15th | v3 (v2023.03.01) |
| Sep 15, 2023 | 0.86% (0.00857) | 80.27th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.99% (0.00990) | 81.64th | v3 (v2023.03.01) |
| Aug 4, 2023 | 1.21% (0.01211) | 83.45th | v3 (v2023.03.01) |
| Aug 3, 2023 | 0.15% (0.00148) | 50.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00082) | 33.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.63% (0.02632) | 82.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.63% (0.02632) | 80.45th | v2 (v2022.01.01) |
| Mar 30, 2022 | 18.09% (0.18093) | 93.55th | v2 (v2022.01.01) |
| Mar 29, 2022 | 16.89% (0.16892) | 93.12th | v2 (v2022.01.01) |
| Jan 6, 2022 | 17.64% (0.17642) | 92.74th | v1 |
| Jan 5, 2022 | 4.56% (0.04557) | 86.73th | v5 (v2026.06.15) |
| Apr 14, 2021 | 4.56% (0.04557) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0875 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0875 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Sep 11, 2020
Updated Aug 4, 2024
Reserved Nov 4, 2019
Link CVE-2020-0875
CISA Vulnrichment
Updated n/a