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2290 articles · 160763 vulns · 36/41 feeds (7d)
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7.5
CVE-2026-3238EXPLOITED
red hat · red hat enterprise linux

Samba: denial of service against ad dc wins server

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.

Affected Products

VendorProductVersions
red hatred hat enterprise linux—

References

  • https://access.redhat.com/security/cve/CVE-2026-3238(vdb-entry, x_refsource_REDHAT)
  • https://bugzilla.redhat.com/show_bug.cgi?id=2486176(issue-tracking, x_refsource_REDHAT)
  • https://www.samba.org/samba/security/CVE-2026-3238.html

Related News (1 articles)

Tier C
VulDB4h ago
CVE-2026-3238 | Samba WINS Service null pointer dereference
→ No new info (linked only)
CVSS 3.17.5 NONE
CISA KEV❌ No
Actively exploited✅ Yes
CWECWE-476
PublishedJun 8, 2026
Last enriched3h agov2
Trending Score39
Source articles1
Independent1
Info Completeness6/14
Missing: versions, cvss, epss, kev, exploit, patch, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jun 8, 2026
Discovered by ZDM
Jun 8, 2026
Updated: description, severity, activelyExploited
Jun 8, 2026
Actively Exploited
Jun 8, 2026

Version History

v2
Last enriched 3h ago
v2Tier C4h ago

Updated severity to HIGH, marked as actively exploited, and corrected exploit availability to false.

descriptionseverityactivelyExploited
via VulDB
v15h ago

Initial creation