Medium severity · published Oct 13, 2026
CVE-2026-96303
Microsoft PowerShell Security Feature Bypass Vulnerability
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
P7
PowerShell 7.4 · Microsoft
7.4.0 before 7.4.21 · source: vendor
P7
PowerShell 7.5 · Microsoft
7.5.0 before 7.5.12 · source: vendor
P7
PowerShell 7.6 · Microsoft
7.6.0 before 7.6.8 · source: vendor
PO
Powershell · Microsoft
7.4 before 7.4.21; 7.5 before 7.5.12; 7.6 before 7.6.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-96303
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-96303
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96303
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