High severity · published Oct 13, 2026
CVE-2026-70161
.NET Elevation of Privilege Vulnerability
7.3
CVSS
0.5%
EPSS
No
On KEV
Description
Improper limitation of a pathname to a restricted directory ('path traversal') in .NET allows an authorized attacker to elevate privileges locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N1
.NET 10.0 runtime · Microsoft
10.0.0 before 10.0.402 · source: vendor
N1
.NET 11.0 runtime · Microsoft
11.0.0 before 11.0.100-rc.2 · source: vendor
N9
.NET 9.0 runtime · Microsoft
9.0.0 before 9.0.319, 9.0.122 · source: vendor
MV
Microsoft Visual Studio 2022 version 17.14 · Microsoft
17.14.0 before 17.14.42 · source: vendor
MV
Microsoft Visual Studio 2026 version 18.10 · Microsoft
18.10.0 before 18.10.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-70161
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-70161
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70161
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