VULNERABILITY INTELLIGENCE
CVE-2026-3238
CVSS score7.5 HIGH
EPSS probability2.67%
CISA KEVNot currently listed
Published2026-06-08
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- secalert@redhat.com: CWE-476
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-476