high7.5
CVE-2026-96958
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Impact
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | System.Security.Cryptography.Xml | >= 10.0.0, <= 10.0.12 | 10.0.13 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | Version 4.8.0 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 |
| Microsoft | System.Security.Cryptography.Xml | from 10.0.0 before 10.0.13 |
| Microsoft | Microsoft .NET Framework 4.8.1 | from 4.8.0.0 before 4.8.9363.0 |
| Microsoft | Microsoft .NET Framework 4.8 | from 4.8.0 before 4.8.4811.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | Version 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | from 4.7.0 before 4.7.4150.0 |
| Microsoft | Microsoft .NET Framework 3.5 | Version 3.5.0 <2.0.50727.9188 AND 3.0.30729.9171 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | Version 3.0.0.0 <2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | Version 4.7.0 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 |
| Microsoft | .Net | from 8.0.0 before 8.0.5 from 9.0.0 before 9.0.21 from 10.0.0 before 10.0.13 Version 11.0.0 |
| Microsoft | .Net Framework | Versions 4.8.1, 4.8, 4.6.2, 4.7, 4.7.1, 4.7.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-r955-8q5j-3h83
- https://github.com/dotnet/runtime/security/advisories/GHSA-r955-8q5j-3h83
- https://github.com/dotnet/announcements/issues/488
- https://github.com/dotnet/runtime/issues/135709
- https://nvd.nist.gov/vuln/detail/CVE-2026-96958
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96958