Vulnerability · Published Oct 13, 2026 · Assigned by microsoft
CVE-2026-96251Microsoft PowerShell Remote Code Execution Vulnerability
High 8.8
In plain English
A high-severity security flaw in PowerShell 7.4 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 47.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Reliance on untrusted inputs in a security decision in Microsoft PowerShell allows an unauthorized attacker to execute code over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | powershell | 7.6.9-r0 | ALPINE-CVE-2026-96251 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | PowerShell 7.4 | 7.4.0 – before 7.4.21 |
| Microsoft | PowerShell 7.5 | 7.5.0 – before 7.5.12 |
| Microsoft | PowerShell 7.6 | 7.6.0 – before 7.6.8 |
Weakness: CWE-807 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft PowerShell Remote Code Execution Vulnerability vendor-advisory, patch