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CVE-2026-3238

Samba: denial of service against ad dc wins server

CVSS 7.5 HIGHEPSS 2.6%CWE-476
Vexday Risk Score
21Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 7.5EPSS 2.6%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
08 jun 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
A flaw was found in Samba’s WINS server component when running as an Active Directory Domain Controller. The WINS protocol handlers for certain request types did not properly validate incoming packets, allowing an unauthenticated remote attacker to trigger a NULL pointer dereference and crash the WINS service using specially crafted UDP packets.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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