Quick answers
- Is CVE-2026-108398 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-108398 being exploited in the wild.
- How severe is CVE-2026-108398?
- High severity, with a CVSS score of 8.8, published 13 October 2026.
- Which products and versions are affected?
- Microsoft .NET Framework.
- Is there a fix for CVE-2026-108398?
- 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-2026-108398 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-108398?
- Check whether you run Microsoft .NET Framework. 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
An untrusted search path vulnerability in .NET Framework permits an authenticated local attacker to bypass security features through directory hijacking or DLL preloading. The attack requires local access and existing authorization on the system. A successful exploit could allow elevation of privilege or circumvention of code integrity checks.
Affected products
- Microsoft .NET Framework
Timeline
- 2026-10-13: disclosed