CVE-2026-25791

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht2/9/2026

Zuletzt geandert2/23/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

bishopfox:sliver

Schwachen (CWE)

CWE-306CWE-400

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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