CVE-2026-25791

HIGH

7.5

Description

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/9/2026

Derniere modification2/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

bishopfox:sliver

Faiblesses (CWE)

CWE-306CWE-400

References

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)

Correlations IOC

Aucune correlation enregistree

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