CVE-2023-1194
Status: AnalyzedHigh (8.1)—
An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Base score: 8.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.08%
- Percentile among all scored CVEs: 64
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-416
- CWE-125
References
- https://access.redhat.com/security/cve/CVE-2023-1194
- https://bugzilla.redhat.com/show_bug.cgi?id=2154176
- https://security.netapp.com/advisory/ntap-20231221-0006/
- https://www.spinics.net/lists/stable-commits/msg303065.html
- https://access.redhat.com/security/cve/CVE-2023-1194
- https://bugzilla.redhat.com/show_bug.cgi?id=2154176
- https://security.netapp.com/advisory/ntap-20231221-0006/
- https://www.spinics.net/lists/stable-commits/msg303065.html
Raw JSON (NVD)
Show
{
"id": "CVE-2023-1194",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 4.2,
"exploitabilityScore": 2.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "kernel",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"packageName": "kernel",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"packageName": "kernel",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"packageName": "kernel-rt",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"packageName": "kernel",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"packageName": "kernel-rt",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"packageName": "kernel",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"packageName": "kernel-rt",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"vendor": "Fedora",
"product": "Fedora",
"packageName": "kernel",
"collectionURL": "https://packages.fedoraproject.org/",
"defaultStatus": "affected"
}
]
}
],
"published": "2023-11-03T08:15:07.490",
"references": [
{
"url": "https://access.redhat.com/security/cve/CVE-2023-1194",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2154176",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://security.netapp.com/advisory/ntap-20231221-0006/",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://www.spinics.net/lists/stable-commits/msg303065.html",
"tags": [
"Mailing List",
"Patch"
],
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2023-1194",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2154176",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.netapp.com/advisory/ntap-20231221-0006/",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.spinics.net/lists/stable-commits/msg303065.html",
"tags": [
"Mailing List",
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory."
},
{
"lang": "es",
"value": "Se encontró una falla de lectura de memoria Out-Of-Bounds (OOB) en parse_lease_state en la implementación KSMBD del servidor samba en el kernel y CIFS en el kernel de Linux. Cuando un atacante envía el comando CREATE con un payload mal formada a KSMBD, debido a una verificación faltante de `NameOffset` en la función `parse_lease_state()`, el objeto `create_context` puede acceder a memoria no válida."
}
],
"lastModified": "2026-06-17T05:27:19.853",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6943BD04-722B-4B0F-810D-A5086EA877BB",
"versionEndExcluding": "5.15.145",
"versionStartIncluding": "5.15"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "827DE634-7B30-489B-8DA2-F753BE881D9B",
"versionEndExcluding": "6.1.34",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7F3A71BC-4CD9-4F21-A84B-E615C990B4ED",
"versionEndExcluding": "6.3.8",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "38BC6744-7D25-4C02-9966-B224CD071D30"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "76061B41-CAE9-4467-BEDE-0FFC7956F2A1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A717BA5B-D535-46A0-A329-A25FE5CEC588"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "89CC80C6-F1EE-4AC7-BD21-DB3217BADE87"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "41EACEA1-FB69-4AF2-BC52-D39489858D42"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}