CVE-2026-25791

HIGH

7.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado2/9/2026

Ultima modificacao2/23/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

bishopfox:sliver

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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