CVE-2023-32021
Windows SMB Witness Service Security Feature Bypass Vulnerability
Windows SMB Witness 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
- None
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows SMB Witness Service Security Feature Bypass Vulnerability
Windows SMB Witness Service Security Feature Bypass Vulnerability
- Record
CVE-2023-32021- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2023-36308
Windows SMB Witness Service Security Feature Bypass Vulnerability
- Record
EUVD-2023-36308- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3hjc-gv2m-96gh
Windows SMB Witness Service Security Feature Bypass Vulnerability
Windows SMB Witness Service Security Feature Bypass Vulnerability
- Record
GHSA-3hjc-gv2m-96gh- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H - Updated
- 2026-11-02
NVD
Windows SMB Witness Service Security Feature Bypass Vulnerability
- Record
CVE-2023-32021- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H - Updated
- 2026-11-02
Affected products
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2012
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-32021 is a high vulnerability (CVSS 7.1) in Microsoft Windows Server 2012 R2, published June 13, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. No source names a fixed version.