CVE-2021-43896
Microsoft PowerShell Spoofing Vulnerability
Microsoft PowerShell Spoofing Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft PowerShell Spoofing Vulnerability
Microsoft PowerShell Spoofing Vulnerability
- Record
CVE-2021-43896- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
EUVDEUVD-2021-30758
Microsoft PowerShell Spoofing Vulnerability
- Record
EUVD-2021-30758- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2w8h-77mr-j4fw
Microsoft PowerShell Spoofing Vulnerability
Microsoft PowerShell Spoofing Vulnerability
- Record
GHSA-2w8h-77mr-j4fw- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
NVD
Microsoft PowerShell Spoofing Vulnerability
- Record
CVE-2021-43896- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
OSVAZL-7049
CVE-2021-43896 affecting package powershell for versions less than 7.2.1-1
Microsoft PowerShell Spoofing Vulnerability
- Record
AZL-7049- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSV
Microsoft PowerShell Spoofing Vulnerability
- Record
CVE-2021-43896- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVBIT-powershell-2021-43896 No score
Microsoft PowerShell Spoofing Vulnerability
Microsoft PowerShell Spoofing Vulnerability
- Record
BIT-powershell-2021-43896- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
powershellAzure Linux:2 |
before 7.2.1-1 | 7.2.1-1 |
powershellBitnami |
7.2.0 up to 7.2.1 | 7.2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43896 is a medium vulnerability (CVSS 5.5) in Microsoft Powershell, published December 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.45%, the 84th percentile. Fixed in powershell 7.2.1-1.