CVE-2026-85818
CriticalCVSS 9.0Summary
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
Risk Assessment
An attacker could impersonate trusted entities, potentially leading to phishing or interception of confidential information.
Recommendation
Apply security patches from Microsoft for Windows Schannel.
Other vulnerabilities in Windows Schannel
See all- CVE-2026-105008Critical
No cwe for this issue in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
- CVE-2026-72940High
Heap-based buffer overflow in Windows Schannel allows an unauthorized attacker to execute code over a network.
- CVE-2026-70575Medium
Null pointer dereference in Windows Schannel allows an authorized attacker to cause a denial of service over a network.
- CVE-2026-62779High
Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.
- CVE-2026-62757Medium
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to bypass a security feature over a network.
- CVE-2026-56186High
Out-of-bounds read in Windows Schannel allows an authorized attacker to disclose information over a network.
Original NVD description (English source)
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS