CVE-2026-3238
High · 7.5CVSS
7.5
EPSS
2.0%
Published
Jun 8, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 16.0 | samba | 0 | 4.22.9+git.506.22c03ce0781-160000.1.1 |
| openSUSE:Tumbleweed | samba | 0 | 4.23.8+git.477.f78166bceed-1.1 |
Related vulnerabilities
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