CVE-2025-21521

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{"affected": [{"affectedData": [{"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"}]}], "source": "secalert_us@oracle.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "6C338948-2AAC-47B7-B3CD-C5F10B1AE7ED", "versionEndIncluding": "8.0.39", "versionStartIncluding": "8.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "9AED5FB1-1F21-4D10-904F-3124A719B08A", "versionEndIncluding": "8.4.2", "versionStartIncluding": "8.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "68961D2D-4D0A-4407-87B3-55CD49B84675", "versionEndIncluding": "9.0.1", "versionStartIncluding": "9.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable vulnerability allows unauthenticated 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."}, {"lang": "es", "value": "Vulnerabilidad en el producto MySQL Server de Oracle MySQL (componente: Server: Thread Pooling). Las versiones compatibles afectadas son 8.0.39 y anteriores, 8.4.2 y anteriores y 9.0.1 y anteriores. Esta vulnerabilidad, que se puede explotar f\u00e1cilmente, permite que un atacante no autenticado con acceso a la red a trav\u00e9s de m\u00faltiples protocolos comprometa 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: 7,5 (impactos en la disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."}], "id": "CVE-2025-21521", "lastModified": "2026-06-17T08:43:40.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secalert_us@oracle.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-21521", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-01-22T18:34:04.669398Z", "version": "2.0.3"}}]}, "published": "2025-01-21T21:15:17.663", "references": [{"source": "secalert_us@oracle.com", "tags": ["Vendor Advisory"], "url": "https://www.oracle.com/security-alerts/cpujan2025.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250124-0010/"}], "sourceIdentifier": "secalert_us@oracle.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:1673", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "mysql:8.0-8100020250212154709.489197e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-02-19T00:00:00Z"}, {"advisory": "RHSA-2025:2883", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "mysql:8.0-8020020250307052449.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-03-17T00:00:00Z"}, {"advisory": "RHSA-2025:2882", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "mysql:8.0-8040020250308034252.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-03-17T00:00:00Z"}, {"advisory": "RHSA-2025:2882", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "mysql:8.0-8040020250308034252.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2025-03-17T00:00:00Z"}, {"advisory": "RHSA-2025:2882", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "mysql:8.0-8040020250308034252.522a0ee4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2025-03-17T00:00:00Z"}, {"advisory": "RHSA-2025:1766", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "mysql:8.0-8060020250214145213.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1766", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "mysql:8.0-8060020250214145213.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1766", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "mysql:8.0-8060020250214145213.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1757", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "mysql:8.0-8080020250214144259.63b34585", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1671", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "mysql-0:8.0.41-2.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-02-19T00:00:00Z"}, {"advisory": "RHSA-2025:1755", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "mysql-0:8.0.40-2.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1767", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "mysql-0:8.0.40-1.el9_2.1", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2025-02-24T00:00:00Z"}, {"advisory": "RHSA-2025:1756", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "mysql-0:8.0.40-1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-02-24T00:00:00Z"}], "bugzilla": {"description": "mysql: Thread Pooling unspecified vulnerability (CPU Jan 2025)", "id": "2339270", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339270"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable vulnerability allows unauthenticated 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."], "name": "CVE-2025-21521", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "mysql8.4", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2025-01-21T20:53:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21521\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21521\nhttps://www.oracle.com/security-alerts/cpujan2025.html#AppendixMSQL"], "threat_severity": "Important"}

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