Uncontrolled resource consumption in Oracle MySQL Cluster
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affected are 8.0.0-8.0.41, 8.4.0-8.4.4 and 9.0.0-9.2.0. 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).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Oracle | MySQL Cluster | 7.6.0 – 7.6.33; 8.0.0 – 8.0.41; 8.4.0 – 8.4.4; 9.0.0 – 9.2.0 | — | No fix listed | CNA |
| Oracle | MySQL Server | 8.0.0 – 8.0.41; 8.4.0 – 8.4.4; 9.0.0 – 9.2.0 | — | No fix listed | CNA |
Remediation
Red Hat 4 advisories
- RHSA-2025:16861 Released 2025-09-29 · Red Hat rating Moderatemysql:8.0 security update
- Red Hat Enterprise Linux AppStream (v. 8) mecab-0.996-2.module+el8.10.0+22857+7f331edd.aarch64::mysql:8.0, mecab-0.996-2.module+el8.10.0+22857+7f331edd.ppc64le::mysql:8.0, mecab-0.996-2.module+el8.10.0+22857+7f331edd.s390x::mysql:8.0 +44
- RHSA-2025:16086 Released 2025-09-17 · Red Hat rating Moderatemysql security update
- Red Hat Enterprise Linux AppStream (v. 9) mysql-8.0.43-1.el9_6, mysql-common-8.0.43-1.el9_6, mysql-errmsg-8.0.43-1.el9_6 +1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) mysql-devel-8.0.43-1.el9_6, mysql-libs-8.0.43-1.el9_6, mysql-test-8.0.43-1.el9_6
- RHSA-2025:16046 Released 2025-09-17 · Red Hat rating Moderatemysql:8.4 security update
- Red Hat Enterprise Linux AppStream (v. 9) mecab-0.996-3.module+el9.6.0+22713+cbf15e23.4.aarch64::mysql:8.4, mecab-0.996-3.module+el9.6.0+22713+cbf15e23.4.ppc64le::mysql:8.4, mecab-0.996-3.module+el9.6.0+22713+cbf15e23.4.s390x::mysql:8.4 +45
Show 1 more Red Hat advisories
- RHSA-2025:15699 Released 2025-09-11 · Red Hat rating Moderatemysql-selinux and mysql8.4 security update
- Red Hat Enterprise Linux AppStream (v. 10) mysql-selinux-1.0.14-1.el10_0, mysql8.4-8.4.6-2.el10_0, mysql8.4-common-8.4.6-2.el10_0 +3
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) mysql8.4-devel-8.4.6-2.el10_0, mysql8.4-test-8.4.6-2.el10_0, mysql8.4-test-data-8.4.6-2.el10_0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle MySQL Cluster, MySQL Server — oracle.com/security-alerts/cpuapr2025.html
29 records Highest priority Priority LOW 29 LOW
Other records, highest priority first
- TI-2025-21995 Vulnerability in the MySQL Client product of Oracle MySQL (component: Client: mysqldump).Priority LOW 31
- TI-2025-15535 Uncontrolled resource consumption in Oracle MySQL ClusterPriority LOW 31
- TI-2025-21961 Incorrect permission assignment in Oracle MySQL ServerPriority LOW 30
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2025:15699 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:16861 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:16046, RHSA-2025:16086 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2025:15699 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:16086 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21574
- 2026-10-03 Alias added: GHSA-mx69-4qpq-mvf3
References
Patch 1
More Oracle Mysql Cluster vulnerabilities
- TI-2021-14316 Out-of-bounds write in Oracle MySQL Cluster CVSS 3.1MEDIUM 6.3
- TI-2021-05744 Uncontrolled resource consumption in NodeJS Node CVSS 3.1HIGH 7.5
- TI-2022-05875 Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). CVSS 3.1MEDIUM 6.3
- TI-2021-05792 Improper input validation in NodeJS Node CVSS 3.1CRITICAL 9.8
- TI-2020-06694 Uncontrolled resource consumption in NodeJS Node CVSS 3.1HIGH 7.5
- TI-2021-14324 Improper array index validation in Oracle MySQL Cluster CVSS 3.1MEDIUM 6.3
Sources
- CVE-2025-21574 · CVE Program
- CVE-2025-21574 · NVD
- FIRST EPSS
- GHSA-mx69-4qpq-mvf3 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21574 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences