High 8.8Published Oct 13, 2026

CVE-2026-70035.NET Framework Remote Code Execution Vulnerability

Updated under an hour ago (Oct 26, 2026, 3:50 PM ET)

Does this affect you?

It affects Microsoft .NET 10.0 runtime and 13 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 1.27%, higher than 70% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Microsoft .NET 10.0 runtime

Exploited in the last 30 days

Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.

CVSS: 8.8 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 1.27% (percentile 70)
Assigned by: microsoft
NVD analysis: Undergoing Analysis
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

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 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 runtime microsoft:net_8.0_runtime (from the name)	from 8.0.0 before 8.0.32	CNA record
Microsoft .NET 9.0 runtime microsoft:net_9.0_runtime (from the name)	from 9.0.0 before 9.0.21	CNA record
Microsoft Microsoft .NET Framework 3.5 microsoft:net_framework_3.5 (from the name)	3.5.0 builds before 2.0.50727.9188 AND 3.0.30729.9171	CNA record
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 microsoft:net_framework_3.5_and_4.6.2_4.7_4.7.1_4.7.2 (from the name)	3.0.0.0 builds before 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0	CNA record
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 microsoft:net_framework_3.5_and_4.7.2 (from the name)	4.7.0 builds before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0	CNA record
Microsoft Microsoft .NET Framework 3.5 AND 4.8 microsoft:net_framework_3.5_and_4.8 (from the name)	4.8.0 builds before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0	CNA record
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 microsoft:net_framework_3.5_and_4.8.1 (from the name)	4.8.1 builds before 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0	CNA record
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 microsoft:net_framework_4.6.2_4.7_4.7.1_4.7.2 (from the name)	from 4.7.0 before 4.7.4150.0	CNA record
1–10 of 14

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70035	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.