CVE-2026-45491
MediumCVSS 6.2Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
An improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.
Risk Assessment
An unauthorized user can modify files they should not access, potentially compromising data integrity.
Recommendation
Apply the relevant security update from Microsoft.
Other vulnerabilities in .NET
See all- CVE-2026-70354High
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
- CVE-2026-62909High
Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.
- CVE-2026-62902Medium
An inclusion of functionality from untrusted control sphere vulnerability in .NET allows an unauthorized attacker to disclose information over a network.
- CVE-2026-62901High
Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.
- CVE-2026-62900Medium
An improper removal of sensitive information before storage or transfer vulnerability in .NET allows an unauthorized attacker to disclose information over a network.
- CVE-2026-62899Medium
An inconsistent interpretation of HTTP requests (HTTP request/response smuggling) vulnerability in .NET allows an unauthorized attacker to bypass a security feature over a network.
- CVE-2026-62886High
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- CVE-2026-62871High
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
- CVE-2026-58641High
An integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- CVE-2026-50659Medium
Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.
Original NVD description (English source)
Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

