Description
Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.
Published: 2026-06-09
Score: 6.2 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7q4v-2mr6-5gpx Microsoft Security Advisory CVE-2026-45491 – .NET Tampering Vulnerability
History

Thu, 11 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:enterprise_linux:10.2
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 10 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 09 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.
Title .NET Tampering Vulnerability
First Time appeared Microsoft
Microsoft .net
Weaknesses CWE-59
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft .net
Redhat Enterprise Linux Hummingbird
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-26T19:40:52.391Z

Reserved: 2026-05-12T16:07:22.618Z

Link: CVE-2026-45491

cve-icon Vulnrichment

Updated: 2026-06-10T12:17:21.270Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T17:17:25.567

Modified: 2026-06-09T19:32:51.440

Link: CVE-2026-45491

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-09T17:04:44Z

Links: CVE-2026-45491 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T11:15:05Z

Weaknesses