CVE-2026-70575
MediumCVSS 5.3Exploitation Probability (EPSS)
Elevated risk60th percentile - higher than 60% of all known CVEs
Summary
Null pointer dereference in Windows Schannel allows an authorized attacker to cause a denial of service over a network.
Risk Assessment
An attacker could crash the service, leading to unavailability of the system for legitimate users.
Recommendation
Apply Windows security updates that fix this flaw.
Other vulnerabilities in Windows Schannel
See all- CVE-2026-72940High
Heap-based buffer overflow in Windows Schannel allows an unauthorized attacker to execute code 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)
Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS