Vulnerability details
CVE-2026-70035
Microsoft NET runtimeMicrosoft .NET FrameworkMicrosoft .NET Framework ANDMicrosoft Visual Studio
.NET Framework Remote Code Execution Vulnerability
CVSS 3.1
8.8High
Official description
Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | .NET 10.0 runtime | 10.0.0 ≤ v < 10.0.13 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 11.0 runtime | 11.0.0 ≤ v < 11.0.0-rc.2 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 8.0 runtime | 8.0.0 ≤ v < 8.0.32 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 9.0 runtime | 9.0.0 ≤ v < 9.0.21 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 ≤ v < 2.0.50727.9188 AND 3.0.30729.9171 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | 3.0.0.0 ≤ v < 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 ≤ v < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 ≤ v < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 ≤ v < 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 ≤ v < 4.7.4150.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 ≤ v < 4.8.4811.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft .NET Framework 4.8.1 | 4.8.0.0 ≤ v < 4.8.9363.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 ≤ v < 17.14.42 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Visual Studio 2026 version 18.10 | 18.10.0 ≤ v < 18.10.4 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70035 vendor-advisorypatch
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Details
- Published
- 2026-10-13
- Last updated
- 2026-10-31
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
1.43%
Probability of exploitation in 30 days
73.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-502Deserialization of Untrusted Data