CVE-2026-54776mediumCWE-306

CVE-2026-54776: fallo de gravedad media en CoreWCF

CoreWCF: Unix Domain Socket PosixIdentity transport accepts connections that skip the security upgrade

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear CoreWCF+ Monitorear CoreWCF.UnixDomainSocket

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 4.4epss 0.2%
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, a CoreWCF service hosted on Unix Domain Sockets with PosixIdentity client credentials can accept connections that skip the application/unixposix stream upgrade before dispatching messages, bypassing framing-layer identity checks in UnixPosixIdentitySecurityUpgradeProvider. This issue is fixed in versions 1.8.1 and 1.9.1.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Productos afectados
CoreWCF · CoreWCF
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