CVE-2026-25791

HIGH

7.5

Descripcion

Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.7.0, the DNS C2 listener accepts unauthenticated TOTP bootstrap messages and allocates server-side DNS sessions without validating OTP values, even when EnforceOTP is enabled. Because sessions are stored without a cleanup/expiry path in this flow, an unauthenticated remote actor can repeatedly create sessions and drive memory exhaustion. This vulnerability is fixed in 1.7.0.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado2/9/2026

Ultima modificacion2/23/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

bishopfox:sliver

Debilidades (CWE)

CWE-306CWE-400

Referencias

https://github.com/BishopFox/sliver/releases/tag/v1.7.0(security-advisories@github.com)

https://github.com/BishopFox/sliver/security/advisories/GHSA-wxrw-gvg8-fqjp(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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