CVE-2025-21494 (GCVE-0-2025-21494)
Vulnerability from cvelistv5 – Published: 2025-01-21 20:52 – Updated: 2025-11-03 20:57
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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 4.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-23 16:46 UTC
CWE
- Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2025.html | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2025012… |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
* , ≤ 8.0.39
(custom)
Affected: * , ≤ 8.4.2 (custom) Affected: * , ≤ 9.0.1 (custom) cpe:2.3:a:oracle:mysql_server:8.0.39_and_prior:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:8.4.2_and_prior:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:9.0.1_and_prior:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-21494",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-01-23T16:46:29.969889Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-01-23T16:46:33.280Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T20:57:32.418Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://security.netapp.com/advisory/ntap-20250124-0010/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:oracle:mysql_server:8.0.39_and_prior:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:mysql_server:8.4.2_and_prior:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:mysql_server:9.0.1_and_prior:*:*:*:*:*:*:*"
],
"product": "MySQL Server",
"vendor": "Oracle Corporation",
"versions": [
{
"lessThanOrEqual": "8.0.39",
"status": "affected",
"version": "*",
"versionType": "custom"
},
{
"lessThanOrEqual": "8.4.2",
"status": "affected",
"version": "*",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.0.1",
"status": "affected",
"version": "*",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en-US",
"value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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 4.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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": "2025-01-21T20:52:53.805Z",
"orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"shortName": "oracle"
},
"references": [
{
"name": "Oracle Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://www.oracle.com/security-alerts/cpujan2025.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"assignerShortName": "oracle",
"cveId": "CVE-2025-21494",
"datePublished": "2025-01-21T20:52:53.805Z",
"dateReserved": "2024-12-24T23:18:54.762Z",
"dateUpdated": "2025-11-03T20:57:32.418Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-21494",
"date": "2026-09-16",
"epss": "0.00289",
"percentile": "0.21497"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-21494\",\"sourceIdentifier\":\"secalert_us@oracle.com\",\"published\":\"2025-01-21T21:15:14.240\",\"lastModified\":\"2026-06-17T08:43:37.153\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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 4.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad en el producto MySQL Server de Oracle MySQL (componente: Server: Security: Privileges). Las versiones compatibles afectadas son 8.0.39 y anteriores, 8.4.2 y anteriores y 9.0.1 y anteriores. Esta vulnerabilidad, que es dif\u00edcil de explotar, permite que un atacante con privilegios elevados que inicie sesi\u00f3n en la infraestructura donde se ejecuta MySQL Server pueda comprometer MySQL Server. Los ataques exitosos de esta vulnerabilidad pueden dar como resultado la capacidad no autorizada de provocar un bloqueo o un bloqueo frecuente y repetible (DOS completo) de MySQL Server. Puntuaci\u00f3n base de CVSS 3.1: 4.1 (impactos en la disponibilidad). Vector CVSS: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).\"}],\"affected\":[{\"source\":\"secalert_us@oracle.com\",\"affectedData\":[{\"vendor\":\"Oracle Corporation\",\"product\":\"MySQL Server\",\"cpes\":[\"cpe:2.3:a:oracle:mysql_server:8.0.39_and_prior:*:*:*:*:*:*:*\",\"cpe:2.3:a:oracle:mysql_server:8.4.2_and_prior:*:*:*:*:*:*:*\",\"cpe:2.3:a:oracle:mysql_server:9.0.1_and_prior:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"*\",\"lessThanOrEqual\":\"8.0.39\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"*\",\"lessThanOrEqual\":\"8.4.2\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"*\",\"lessThanOrEqual\":\"9.0.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secalert_us@oracle.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.5,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-01-23T16:46:29.969889Z\",\"id\":\"CVE-2025-21494\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.0.0\",\"versionEndIncluding\":\"8.0.39\",\"matchCriteriaId\":\"6C338948-2AAC-47B7-B3CD-C5F10B1AE7ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.4.0\",\"versionEndIncluding\":\"8.4.2\",\"matchCriteriaId\":\"9AED5FB1-1F21-4D10-904F-3124A719B08A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndIncluding\":\"9.0.1\",\"matchCriteriaId\":\"68961D2D-4D0A-4407-87B3-55CD49B84675\"}]}]}],\"references\":[{\"url\":\"https://www.oracle.com/security-alerts/cpujan2025.html\",\"source\":\"secalert_us@oracle.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20250124-0010/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-31T20:46:38+00:00",
"cve": "CVE-2025-21494",
"id": "CVE-2025-21494",
"initial_release_date": "2025-01-21T20:52:53.805000+00:00",
"product_status:fixed": "156",
"product_status:known_not_affected": "18",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "mysql: MySQL Server: Denial of Service vulnerability",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21494.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2025-07-07T23:34:14Z",
"cve": "CVE-2025-21494",
"id": "CVE-2025-21494",
"initial_release_date": "2025-02-21T00:13:59Z",
"product_status:recommended": "18",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-21494",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21494.json",
"version": "8"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://security.netapp.com/advisory/ntap-20250124-0010/\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:57:32.418Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-21494\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-23T16:46:29.969889Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770 Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-01-23T16:46:21.373Z\"}}], \"cna\": {\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.1, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:oracle:mysql_server:8.0.39_and_prior:*:*:*:*:*:*:*\", \"cpe:2.3:a:oracle:mysql_server:8.4.2_and_prior:*:*:*:*:*:*:*\", \"cpe:2.3:a:oracle:mysql_server:9.0.1_and_prior:*:*:*:*:*:*:*\"], \"vendor\": \"Oracle Corporation\", \"product\": \"MySQL Server\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"8.0.39\"}, {\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"8.4.2\"}, {\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"9.0.1\"}]}], \"references\": [{\"url\": \"https://www.oracle.com/security-alerts/cpujan2025.html\", \"name\": \"Oracle Advisory\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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 4.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"description\": \"Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes 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.\"}]}], \"providerMetadata\": {\"orgId\": \"43595867-4340-4103-b7a2-9a5208d29a85\", \"shortName\": \"oracle\", \"dateUpdated\": \"2025-01-21T20:52:53.805Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-21494\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T20:57:32.418Z\", \"dateReserved\": \"2024-12-24T23:18:54.762Z\", \"assignerOrgId\": \"43595867-4340-4103-b7a2-9a5208d29a85\", \"datePublished\": \"2025-01-21T20:52:53.805Z\", \"assignerShortName\": \"oracle\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…