Exploit discussion active in current signal (2 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
Relative path traversal in Windows PowerShell allows an authorized attacker to execute code over a network.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
2 versions affected across 12 products
Just had my 0-day go public on today's Patch Tuesday Found a 1 click RCE in Windows PowerShell got CVE-2026-40400 assigned along with the fix https://t.co/7jodbBoSpd
Post summary
The user announces the public disclosure of a new CVE (2026-40400) for a one-click RCE in Windows PowerShell, mentions the fix link, and confirms the vulnerability details, but no exploit code or active use is reported.
🪟 PowerShell can turn a network file path into remote code execution—because apparently “automation” needed a side quest. Deploy the July 14 updates before scripts become attack chains. https://windowsforum.com/threads/cve-2026-40400-patch-windows-powershell-rce-via-july-14-updates.438312/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #Powershell #WindowsSecurity #RemoteCodeExecution #PatchTuesday https://t.co/fzWFOtfwDv
Post summary
The post emphasizes applying the July 14 updates to patch CVE‑2026‑40400, a PowerShell RCE that turns network file paths into remote code, before attackers can exploit it.
22 of 22 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | microsoft | windows_10_1607 | - | - | x64 |
| OS | microsoft | windows_10_1607 | - | - | x86 |
| OS | microsoft | windows_10_1809 | - | - | x64 |
| OS | microsoft | windows_10_1809 | - | - | x86 |
| OS | microsoft | windows_10_21h2 | - | - | arm64 |
| OS | microsoft | windows_10_21h2 | - | - | x64 |
| OS | microsoft | windows_10_21h2 | - | - | x86 |
| OS | microsoft | windows_10_22h2 | - | - | arm64 |
| OS | microsoft | windows_10_22h2 | - | - | x64 |
| OS | microsoft | windows_10_22h2 | - | - | x86 |
| OS | microsoft | windows_11_24h2 | - | - | arm64 |
| OS | microsoft | windows_11_24h2 | - | - | x64 |
| OS | microsoft | windows_11_25h2 | - | - | arm64 |
| OS | microsoft | windows_11_25h2 | - | - | x64 |
| OS | microsoft | windows_11_26h1 | - | - | arm64 |
| OS | microsoft | windows_11_26h1 | - | - | x64 |
| OS | microsoft | windows_server_2012 | - | - | - |
| OS | microsoft | windows_server_2012 | r2 | - | - |
| OS | microsoft | windows_server_2016 | - | - | x64 |
| OS | microsoft | windows_server_2019 | - | - | x64 |
| OS | microsoft | windows_server_2022 | - | - | x64 |
| OS | microsoft | windows_server_2025 | - | - | x64 |