Aug 2026: Windows Schannel Security Feature Bypass Vulnerability
CVE-2026-62757 Published on August 11, 2026
Windows Schannel Security Feature Bypass Vulnerability
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to bypass a security feature over a network.
Weakness Type
Improper Verification of Cryptographic Signature
The software does not verify, or incorrectly verifies, the cryptographic signature for data.
Products Associated with CVE-2026-62757
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.19044.0 and below 10.0.19044.7663 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7663 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7517 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7517 is affected.
- Version 10.0.26100.0 and below 10.0.26100.9168 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9168 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2704 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26279 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26279 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23337 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23337 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5499 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33296 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33296 is affected.