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CERTFR-2026-AVI-0070
Vulnerability from certfr_avis - Published: 2026-01-21 - Updated: 2026-01-21
De multiples vulnérabilités ont été découvertes dans Oracle MySQL. Elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Oracle | MySQL | MySQL Server (Server: Parser) versions 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Server (Server: Packaging) versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Connectors (Connector/ODBC) versions 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Server (Server: Docker Images) versions 8.4.0 à 8.4.7 | ||
| Oracle | MySQL | MySQL Server (Server: DDL) versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Server (InnoDB) versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Enterprise Backup versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Cluster versions 7.6.0 à 7.6.36, 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Connectors (Connector/C++) versions 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Server (Server: Thread Pooling) versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Workbench versions 8.0.0 à 8.0.45 | ||
| Oracle | MySQL | MySQL Server (Server: Pluggable Auth) versions 9.0.0 à 9.5.0 | ||
| Oracle | MySQL | MySQL Server (Server: Optimizer) versions 8.0.0 à 8.0.44, 8.4.0 à 8.4.7 et 9.0.0 à 9.5.0 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "MySQL Server (Server: Parser) versions 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: Packaging) versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Connectors (Connector/ODBC) versions 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: Docker Images) versions 8.4.0 \u00e0 8.4.7",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: DDL) versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (InnoDB) versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Enterprise Backup versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Cluster versions 7.6.0 \u00e0 7.6.36, 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Connectors (Connector/C++) versions 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: Thread Pooling) versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Workbench versions 8.0.0 \u00e0 8.0.45",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: Pluggable Auth) versions 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
},
{
"description": "MySQL Server (Server: Optimizer) versions 8.0.0 \u00e0 8.0.44, 8.4.0 \u00e0 8.4.7 et 9.0.0 \u00e0 9.5.0",
"product": {
"name": "MySQL",
"vendor": {
"name": "Oracle",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-10148",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-10148"
},
{
"name": "CVE-2026-21936",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21936"
},
{
"name": "CVE-2026-21937",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21937"
},
{
"name": "CVE-2026-21949",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21949"
},
{
"name": "CVE-2025-6965",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6965"
},
{
"name": "CVE-2025-64505",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-64505"
},
{
"name": "CVE-2026-21948",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21948"
},
{
"name": "CVE-2025-64506",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-64506"
},
{
"name": "CVE-2025-64720",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-64720"
},
{
"name": "CVE-2025-9232",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-9232"
},
{
"name": "CVE-2026-21964",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21964"
},
{
"name": "CVE-2025-65018",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-65018"
},
{
"name": "CVE-2026-21950",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21950"
},
{
"name": "CVE-2026-21968",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21968"
},
{
"name": "CVE-2025-9086",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-9086"
},
{
"name": "CVE-2026-21929",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21929"
},
{
"name": "CVE-2026-21952",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21952"
},
{
"name": "CVE-2026-21965",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21965"
},
{
"name": "CVE-2026-21941",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-21941"
},
{
"name": "CVE-2025-9230",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-9230"
}
],
"initial_release_date": "2026-01-21T00:00:00",
"last_revision_date": "2026-01-21T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0070",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-21T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Oracle MySQL. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Oracle MySQL",
"vendor_advisories": [
{
"published_at": "2026-01-20",
"title": "Bulletin de s\u00e9curit\u00e9 Oracle MySQL cpujan2026",
"url": "https://www.oracle.com/security-alerts/cpujan2026.html"
}
]
}
CVE-2026-21936 (GCVE-0-2026-21936)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 20:57
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 20:57 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Cluster.
- CWE-noinfo Not enough information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Cluster |
Affected:
7.6.0 , ≤ 7.6.36
(custom)
Affected: 8.0.0 , ≤ 8.0.44 (custom) Affected: 8.4.0 , ≤ 8.4.7 (custom) Affected: 9.0.0 , ≤ 9.5.0 (custom) |
|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
Affected: 8.4.0 , ≤ 8.4.7 (custom) Affected: 9.0.0 , ≤ 9.5.0 (custom) |
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
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"state": "PUBLISHED"
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CVE-2026-21937 (GCVE-0-2026-21937)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 20:58
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 20:58 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-noinfo Not enough information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
Affected: 8.4.0 , ≤ 8.4.7 (custom) Affected: 9.0.0 , ≤ 9.5.0 (custom) cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-21941 (GCVE-0-2026-21941)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 14:59
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 14:58 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
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CVE-2026-21948 (GCVE-0-2026-21948)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 15:12
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:10 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
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CVE-2026-21949 (GCVE-0-2026-21949)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 15:15
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.5.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:13 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
9.0.0 , ≤ 9.5.0
(custom)
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-21950 (GCVE-0-2026-21950)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 15:17
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.5.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:16 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
9.0.0 , ≤ 9.5.0
(custom)
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-21952 (GCVE-0-2026-21952)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 15:23
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affected are 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:20 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
9.0.0 , ≤ 9.5.0
(custom)
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-21964 (GCVE-0-2026-21964)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 20:04
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 20:01 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-noinfo Not enough information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
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CVE-2026-21965 (GCVE-0-2026-21965)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 19:57
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Pluggable Auth). Supported versions that are affected are 9.0.0-9.5.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 19:57 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server.
- CWE-noinfo Not enough information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
9.0.0 , ≤ 9.5.0
(custom)
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-21968 (GCVE-0-2026-21968)
Vulnerability from cvelistv5 – Published: 2026-01-20 21:56 – Updated: 2026-01-21 19:21
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 19:20 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-noinfo Not enough information
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.44
(custom)
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{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "8.0.44",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "8.4.7",
"versionStartIncluding": "8.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.5.0",
"versionStartIncluding": "9.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en-US",
"value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.",
"lang": "en-US"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-20T21:56:34.542Z",
"orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"shortName": "oracle"
},
"references": [
{
"name": "Oracle Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://www.oracle.com/security-alerts/cpujan2026.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"assignerShortName": "oracle",
"cveId": "CVE-2026-21968",
"datePublished": "2026-01-20T21:56:34.542Z",
"dateReserved": "2026-01-05T18:07:34.714Z",
"dateUpdated": "2026-01-21T19:21:31.349Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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