# CVE-2026-102869: .NET and Visual Studio type confusion privilege elevation

Source: https://junglewise.ai/threats/cve-2026-102869-access-of-resource-using-incompatible-type-type-confusion-in-net  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-102869 · Severity: high · CVSS 8.8 · Published 2026-10-13

A type confusion vulnerability in Microsoft's .NET framework and Visual Studio development tools allows attackers to escalate privileges on a computer over the network. An attacker exploiting this flaw could gain administrative-level access to run arbitrary code on affected systems, potentially compromising development environments and deployed applications.

Technologies: [Microsoft .Net](https://junglewise.ai/threats/technologies/microsoft-net), [Microsoft Visual Studio](https://junglewise.ai/threats/technologies/visual-studio). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-102869 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102869 being exploited in the wild.

**How severe is CVE-2026-102869?** High severity, with a CVSS score of 8.8, published 13 October 2026.

**Which products and versions are affected?** Microsoft .NET; Microsoft Visual Studio.

**Is there a fix for CVE-2026-102869?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-102869 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102869?** Check whether you run Microsoft .Net or Microsoft Visual Studio. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A type confusion vulnerability (CWE-843) in .NET and Visual Studio permits privilege escalation via the network. The flaw allows an unauthorized attacker to access resources using an incompatible type, leading to elevation of privileges. No mitigating controls or workarounds are documented in the advisory.

## Affected products

- Microsoft .NET
- Microsoft Visual Studio

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102869](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102869)

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