Type Vulnerability
A path traversal vulnerability in.NET allows an authorised attacker to locally elevate privileges.
Microsoft · Path traversal
Path Traversal in .NET allows an authorized attacker to elevate privileges locally
CVE-2026-70161
What this means
This is rated high severity (7.3 out of 10). There is no confirmed exploitation of it yet. Ask IT whether the affected products are in your estate.
Full vendor description
Improper limitation of a pathname to a restricted directory ('path traversal') in .NET allows an authorized attacker to elevate privileges locally.
Scoring and exploitation
7.3/ 10
CVSS 3.1 base scoreHigh
Exploitable only with local access and a low-privilege account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorLocalAV:L
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionRequiredUI:R
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- ~0.5% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-22
References
1 link from the CVE record, grouped by site.
msrc.microsoft.com1 link