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Refraction-networking

Refraction-networking Utls: vulnerabilities and CVEs

Refraction-networking Utls has 2 published vulnerabilities, 2 of them in the last 12 months. 0 are rated critical and 0 are listed by CISA as actively exploited.

CVEs2
Last 12 months2
Critical0
Actively exploited0

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Latest vulnerabilities

CVESeverityEPSSActive exploitationPublishedDescription
CVE-2026-27017Low (2.3)0.19%—Feb 20, 2026
uTLS is a fork of crypto/tls, created to customize ClientHello for fingerprinting resistance while still using it for the handshake. Versions 1.6.0 through 1.8.0 contain a fingerprint mismatch with Chrome when using…
CVE-2026-26994Medium (6.5)0.38%—Feb 20, 2026
uTLS is a fork of crypto/tls, created to customize ClientHello for fingerprinting resistance while still using it for the handshake. In versions 1.6.7 and below, uTLS did not implement the TLS 1.3 downgrade protection…