CVE-2020-1259
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly...
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly handles hashes recorded and logged, aka 'Windows Host Guardian Service Security Feature Bypass Vulnerability'.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly handles hashes recorded and logged, aka 'Windows Host Guardian Service Security Feature Bypass Vulnerability'.
- Record
CVE-2020-1259- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly handles hashes recorded and logged, aka 'Windows Host Guardian Service Security Feature Bypass Vulnerability'.
- Record
CVE-2020-1259- Updated
- 2026-11-02
EUVDEUVD-2020-12138 No score
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly handles hashes recorded and logged, aka 'Windows Host Guardian Service Security Feature Bypass Vulnerability'.
- Record
EUVD-2020-12138- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4538-wpvw-289w No score
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly...
A security feature bypass vulnerability exists when Windows Host Guardian Service improperly handles hashes recorded and logged, aka 'Windows Host Guardian Service Security Feature Bypass Vulnerability'.
- Record
GHSA-4538-wpvw-289w- Weakness
- CWE-522
- 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 10 version 2004 for 32-bit systems
- microsoft windows 10 version 2004 for arm64-based systems
- microsoft windows 10 version 2004 for x64-based systems
- microsoft windows server
- microsoft windows server, version 1903 (server core installation)
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-2020-1259 is a medium vulnerability (CVSS 4.3) in Microsoft Windows, published June 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.13%, the 87th percentile. No source names a fixed version.