ALPINE-CVE-2026-3238
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.
ALPINE-CVE-2026-3238
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALPINE-CVE-2026-3238
samba
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 4.22.10-r0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
samba
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 4.23.8-r0
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.22.10-r0"
}
]
}
],
"package": {
"name": "samba",
"purl": "pkg:apk/alpine/samba?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3238.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.23.8-r0"
}
]
}
],
"package": {
"name": "samba",
"purl": "pkg:apk/alpine/samba?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3238.json"
},
"ecosystem_specific": {}
}
]Publisher severity
No explicit severity was provided.
- Event
- #54252 · Revision 1
- Added to Heist Feed
- Publisher date