High 8.1Published Oct 13, 2026

CVE-2026-70197.NET and Visual Studio Remote Code Execution Vulnerability

Updated under an hour ago (Oct 26, 2026, 5:50 PM ET)

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It affects Microsoft .NET 10.0 installed on Linux and 20 other products. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.69%, higher than 52% of scored CVEs.

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Every CVE for Microsoft .NET 10.0 installed on Linux

Exploited in the last 30 days

Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.69% (percentile 52)
Assigned by: microsoft
NVD analysis: Awaiting Analysis
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

Microsoft .NET 10.0 installed on Linux microsoft:net_10.0_installed_on_linux (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 10.0 installed on Mac OS microsoft:net_10.0_installed_on_mac_os (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 10.0 installed on Windows microsoft:net_10.0_installed_on_windows (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 10.0 runtime microsoft:net_10.0_runtime (from the name)	from 10.0.0 before 10.0.13	CNA record
Microsoft .NET 11.0 installed on Linux microsoft:net_11.0_installed_on_linux (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3	CNA record
Microsoft .NET 11.0 installed on Mac OS microsoft:net_11.0_installed_on_mac_os (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3	CNA record
Microsoft .NET 11.0 installed on Windows microsoft:net_11.0_installed_on_windows (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3.26522.148	CNA record
Microsoft .NET 11.0 runtime microsoft:net_11.0_runtime (from the name)	11.0.0 builds before 11.0.0-rc.2	CNA record
Microsoft .NET 8.0 installed on Linux microsoft:net_8.0_installed_on_linux (from the name)	from 8.0.0 before 8.0.427	CNA record
Microsoft .NET 8.0 installed on Mac OS microsoft:net_8.0_installed_on_mac_os (from the name)	from 8.0.0 before 8.0.427	CNA record
1–10 of 21

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70197	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.