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CVE-2026-50526: .NET Tampering Vulnerability

highCVSS 7CVE-2026-50526
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally.

CSIRTS triage

vendor: Microsoftproduct: .NETOther
What
Improper link resolution before file access in .NET allows an authorized attacker to perform tampering locally.
Who is affected
Authorized users of .NET applications that are vulnerable to this issue.
Urgency
Remediation is high urgency due to the potential for local tampering, which can affect application integrity.
Action
Update to the latest version of .NET to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50526

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-50526coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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