CVE-2026-58649
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Risk Assessment
An unauthorized attacker may gain access to sensitive data transmitted by .NET applications.
Recommendation
Update .NET to the latest version and implement proper origin validation mechanisms.
Other vulnerabilities in .NET
See all- CVE-2026-69806High
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
- CVE-2026-69805High
External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network.
- 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.
Original NVD description (English source)
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

