Quick answers
- Is CVE-2026-96251 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96251 being exploited in the wild.
- How severe is CVE-2026-96251?
- High severity, with a CVSS score of 8.8, published 13 October 2026.
- Which products and versions are affected?
- Microsoft PowerShell.
- Is there a fix for CVE-2026-96251?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-96251 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-96251?
- Check whether you run Microsoft PowerShell. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability stems from PowerShell relying on untrusted inputs when making security decisions, failing to properly validate the source or integrity of input before using it in a security context. An attacker with network access can craft malicious input to exploit this validation flaw and achieve remote code execution. A fix is expected to be available from Microsoft.
Affected products
- Microsoft PowerShell
Timeline
- 2026-10-13: disclosed