CVE-2026-108398
.NET Framework Security Feature Bypass Vulnerability
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
.NET Framework Security Feature Bypass Vulnerability
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
- Record
CVE-2026-108398- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-426
- Updated
- 2026-11-02
EUVDEUVD-2026-99069
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
- Record
EUVD-2026-99069- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-895h-jx6m-8rp6
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security...
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
- Record
GHSA-895h-jx6m-8rp6- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-426
- Updated
- 2026-11-02
NVD
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
- Record
CVE-2026-108398- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-426
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-108398 is a high vulnerability (CVSS 8.8) in Microsoft .net Framework 3.5 And 4.6.2/4.7/4.7.1/4.7.2, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. No source names a fixed version.