.NET Framework Remote Code Execution Vulnerability
Published Aug 11, 2026
7.0
HIGHCVSS 3.1
EPSS 0.37%
Description
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.
Affected products
-
- Version 3.5.0StatusaffectedConstraints<2.0.50727.9183 & 3.0.30729.9169
- Version
-
- Version 4.7.0StatusaffectedConstraints<2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0
- Version
-
- Version 4.8.0StatusaffectedConstraints<2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0
- Version
-
- Version 4.8.0.0StatusaffectedConstraints<4.8.9344.0
- Version
-
- Version 17.14.0StatusaffectedConstraints<17.14.38
- Version
-
- Version 18.0StatusaffectedConstraints<18.8.3
- Version
-
- Version 10.0.0StatusaffectedConstraints<10.0.11
- Version 8.0.0StatusaffectedConstraints<8.0.30
- Version 9.0.0StatusaffectedConstraints<9.0.19
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 | n/a |
| ||||||||||||
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | n/a |
| ||||||||||||
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | n/a |
| ||||||||||||
| Microsoft | Microsoft .NET Framework 4.8.1 | n/a |
| ||||||||||||
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | n/a |
| ||||||||||||
| Microsoft | Microsoft Visual Studio 2026 version 18.8 | n/a |
| ||||||||||||
| Microsoft | n/a | n/a |
|
Configuration 1
- 3.5
Running on/with
- n/a
- n/a
Configuration 2
- 3.5
- 4.7.2
Running on/with
- n/a
Configuration 3
- ≥ 17.14.0 · < 17.14.38
- ≥ 18.8.0 · < 18.8.3
Configuration 4
Configuration 5
- 4.8.1
Running on/with
- n/a
- n/a
Configuration 6
- 3.5
- 4.8
Running on/with
- n/a
No data.
Red Hat Enterprise Linux 10
dotnet10.0
Not affected
Red Hat Enterprise Linux 10
dotnet11.0
Not affected
Red Hat Enterprise Linux 10
dotnet8.0
Not affected
Red Hat Enterprise Linux 10
dotnet9.0
Not affected
Red Hat Enterprise Linux 8
dotnet/sdk
Not affected
Red Hat Enterprise Linux 8
dotnet10.0
Not affected
Red Hat Enterprise Linux 8
dotnet8.0
Not affected
Red Hat Enterprise Linux 8
dotnet9.0
Not affected
Red Hat Enterprise Linux 9
dotnet/sdk
Not affected
Red Hat Enterprise Linux 9
dotnet10.0
Not affected
Red Hat Enterprise Linux 9
dotnet11.0
Not affected
Red Hat Enterprise Linux 9
dotnet6.0
Not affected
Red Hat Enterprise Linux 9
dotnet7.0
Not affected
Red Hat Enterprise Linux 9
dotnet8.0
Not affected
Red Hat Enterprise Linux 9
dotnet9.0
Not affected
Red Hat Hardened Images
dotnet10.0
Not affected
Red Hat Hardened Images
dotnet8.0
Not affected
Red Hat Hardened Images
dotnet9.0
Not affected
Red Hat OpenShift Dev Spaces
devspaces/udi-rhel9
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | dotnet10.0 | Not affected | n/a |
| Red Hat Enterprise Linux 10 | dotnet11.0 | Not affected | n/a |
| Red Hat Enterprise Linux 10 | dotnet8.0 | Not affected | n/a |
| Red Hat Enterprise Linux 10 | dotnet9.0 | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dotnet/sdk | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dotnet10.0 | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dotnet8.0 | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dotnet9.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet/sdk | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet10.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet11.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet6.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet7.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet8.0 | Not affected | n/a |
| Red Hat Enterprise Linux 9 | dotnet9.0 | Not affected | n/a |
| Red Hat Hardened Images | dotnet10.0 | Not affected | n/a |
| Red Hat Hardened Images | dotnet8.0 | Not affected | n/a |
| Red Hat Hardened Images | dotnet9.0 | Not affected | n/a |
| Red Hat OpenShift Dev Spaces | devspaces/udi-rhel9 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat's .NET packages ship only the cross-platform runtime (Microsoft.NETCore.App.Runtime). CVE-2026-62897 affects exclusively Microsoft.WindowsDesktop.App.Runtime.win-* — the WinForms and WPF GUI subsystem for Windows — and is not present in any Red Hat .NET Linux build. Red Hat has never shipped legacy .NET Framework (4.x) either. No Red Hat product is affected.
Red Hat mitigation
No mitigation is required. Red Hat's .NET packages do not ship the Windows Desktop runtime components (Microsoft.WindowsDesktop.App.Runtime) that contain the vulnerability.
References (8)
- https://access.redhat.com/security/cve/CVE-2026-62897 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2514193 Issue Tracking
- https://github.com/advisories/GHSA-fx4q-gjrx-2jw6 Advisory
- https://github.com/dotnet/announcements/issues/434
- https://github.com/dotnet/wpf/security/advisories/GHSA-fx4q-gjrx-2jw6
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62897 vendor-advisorypatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-62897
- https://www.cve.org/CVERecord?id=CVE-2026-62897
Change history (0)
No recorded changes yet.