Windows Schannel vulnerabilities
9 known CVE vulnerabilities in Windows Schannel, translated and rated.
- CVE-2026-70566High
Null pointer dereference in Windows Schannel allows an authorized attacker to elevate privileges locally.
- CVE-2026-105005High
Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.
- CVE-2026-85818Critical
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
- 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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

