CVE-2020-0639
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS)...
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.
- Record
CVE-2020-0639- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.
- Record
CVE-2020-0639- Updated
- 2026-11-02
EUVDEUVD-2020-2133 No score
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.
- Record
EUVD-2020-2133- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rpwp-fpr7-w346 No score
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS)...
An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory, aka 'Windows Common Log File System Driver Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-0615.
- Record
GHSA-rpwp-fpr7-w346- Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
- microsoft windows
- microsoft windows 10 version 1903 for 32-bit systems
- microsoft windows 10 version 1903 for arm64-based systems
- microsoft windows 10 version 1903 for x64-based systems
- microsoft windows 10 version 1909 for 32-bit systems
- microsoft windows 10 version 1909 for arm64-based systems
- microsoft windows 10 version 1909 for x64-based systems
- microsoft windows server
- microsoft windows server, version 1903 (server core installation)
- microsoft windows server, version 1909 (server core installation)
- microsoft windows 10
- microsoft windows 7
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-0639 is a medium vulnerability (CVSS 5.5) in Microsoft Windows, published January 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.40%, the 72nd percentile. No source names a fixed version.