CVE-2026-70337

highpriority · track · 0EPSS 0.009 · 61 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.94% (61st) EPSS

CVSS 8.8 · high

Is it mine?

141 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedPowerShell 7.4msrc_csaf
7.4.19.0:Security Update
FixedPowerShell 7.5msrc_csaf
7.5.10.0:Security Update
FixedPowerShell 7.6msrc_csaf
7.6.5:Security Update

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-23USCWE-23USCWE-23USCWE-23US

affected products (141)

Products and version ranges known to be affected.

Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Hitachi Storageall versionscert_bundDEcpe:/h:hitachi:storage:-
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.6.24.74.7.14.7.2_on_windows_10_version_1607
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.7.2_on_windows_10_version_1809
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8_on_windows_10_version_1809
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8_on_windows_10_version_21h2
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8_on_windows_10_version_22h2
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8.1_on_windows_10_version_21h2
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8.1_on_windows_10_version_22h2
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8.1_on_windows_11_version_23h2
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8.1_on_windows_11_version_24h2
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_and_4.8.1_on_windows_11_version_25h2
Microsoft .NET Framework 3.5 on Windows 11 version 26H1all versionscert_bundDEcpe:/a:microsoft:.net_framework:3.5_on_windows_11_version_26h1
Microsoft .NET Framework 4.8 on Windows 10 Version 1607all versionscert_bundDEcpe:/a:microsoft:.net_framework:4.8_on_windows_10_version_1607
Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1all versionscert_bundDEcpe:/a:microsoft:.net_framework:4.8.1_on_windows_11_version_26h1
Microsoft PowerShell 7.4all versionscert_bundDEcpe:/a:microsoft:powershell:7.4:rc1
Microsoft PowerShell 7.5all versionscert_bundDEcpe:/a:microsoft:powershell:7.5
Microsoft PowerShell 7.6all versionscert_bundDEcpe:/a:microsoft:powershell:7.6:preview4
Microsoft Visual Studio Codeall versionscert_bundDEcpe:/a:microsoft:visual_studio_code:-
Microsoft Visual Studio Code CoPilot Chat Extensionall versionscert_bundDEcpe:/a:microsoft:visual_studio_code:copilot_chat_extension

showing 20 of 141

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2026-0285Kwetsbaarheden verholpen in Microsoft Developer ToolsNL2026-08-11csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Developer Tools.
WID-SEC-W-2026-2761Microsoft Developer Tools: Mehrere SchwachstellenDeutsch2026-08-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio Code, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft .NET Framework, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025, Microsoft PowerShell, Microsoft Windows, Microsoft .NET, Microsoft Visual Studio 2022 und Microsoft Visual Studio 2026 ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, und um Sicherheitsvorkehrungen zu umgehen.
msrc_CVE-2026-70337Microsoft PowerShell Remote Code Execution Vulnerability2026-08-11csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
BIT-powershell-2026-70337Microsoft PowerShell Remote Code Execution Vulnerability2026-08-17vendor · osvUS
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl msrc_csaf osv NVD CVE.org MITRE

published 2026-08-11modified 2026-08-14

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

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