Description
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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | MySQL Server | ≤ 8.0.39, ≤ 8.4.2, ≤ 9.0.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mysql-8.0 | 8.0.40-0ubuntu0.24.04.1 | — |
| Ubuntu 22.04 LTS | mysql-8.0 | 8.0.40-0ubuntu0.22.04.1 | — |
| Ubuntu 20.04 LTS | mysql-8.0 | 8.0.40-0ubuntu0.20.04.1 | — |
| Ubuntu 16.04 LTS | percona-server-5.6 +1 | No fix yet | — |
| Ubuntu 14.04 LTS | mysql-5.5 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | mysql-5.7 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | mysql-5.7 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | mysql8.4 +7 | 8.4.4-2.el10 | RHBA-2025:5321 |
| RHEL 9 | mysql +6 | 8.0.41-2.el9_5 | RHSA-2025:1671 |
| RHEL 8 | mecab +1 | 0.996-2.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
| RHEL 8 | mecab-ipadic +1 | 2.7.0.20070801-17.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
| RHEL 8 | mysql +6 | 8.0.41-1.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | mysql +6 | 8.0.40-1.el9_4 | RHSA-2025:1756 |
| RHEL 9.2 EUS | mysql +6 | 8.0.40-1.el9_2.1 | RHSA-2025:1767 |
| RHEL 9.0 E4S | mysql +3 | 8.0.40-2.el9_0 | RHSA-2025:1755 |
| RHEL 8.8 EUS | mecab +1 | 0.996-2.module+el8.8.0+18436+8918dd75 | RHSA-2025:1757 |
| RHEL 8.8 EUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:1757 |
| RHEL 8.8 EUS | mysql +6 | 8.0.40-1.module+el8.8.0+22863+a1071e1e | RHSA-2025:1757 |
| RHEL 8.6 TUS | mecab | 0.996-2.module+el8.6.0+16523+5cb0e868 | RHSA-2025:1766 |
| RHEL 8.6 TUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:1766 |
| RHEL 8.6 TUS | mysql +6 | 8.0.40-1.module+el8.6.0+22864+ceaef991 | RHSA-2025:1766 |
| RHEL 8.6 E4S | mecab | 0.996-2.module+el8.6.0+16523+5cb0e868 | RHSA-2025:1766 |
| RHEL 8.6 E4S | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:1766 |
| RHEL 8.6 E4S | mysql +6 | 8.0.40-1.module+el8.6.0+22864+ceaef991 | RHSA-2025:1766 |
| RHEL 8.6 AUS | mecab | 0.996-2.module+el8.6.0+16523+5cb0e868 | RHSA-2025:1766 |
| RHEL 8.6 AUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:1766 |
| RHEL 8.6 AUS | mysql +6 | 8.0.40-1.module+el8.6.0+22864+ceaef991 | RHSA-2025:1766 |
| RHEL 8.4 TUS | mecab | 0.996-1.module+el8.0.0+3898+e09bb8de.9 | RHSA-2025:2882 |
| RHEL 8.4 TUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:2882 |
| RHEL 8.4 TUS | mysql +6 | 8.0.40-1.module+el8.4.0+22899+4f2ca788.1 | RHSA-2025:2882 |
| RHEL 8.4 E4S | mecab | 0.996-1.module+el8.0.0+3898+e09bb8de.9 | RHSA-2025:2882 |
| RHEL 8.4 E4S | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:2882 |
| RHEL 8.4 E4S | mysql +6 | 8.0.40-1.module+el8.4.0+22899+4f2ca788.1 | RHSA-2025:2882 |
| RHEL 8.4 AUS | mecab | 0.996-1.module+el8.0.0+3898+e09bb8de.9 | RHSA-2025:2882 |
| RHEL 8.4 AUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:2882 |
| RHEL 8.4 AUS | mysql +6 | 8.0.40-1.module+el8.4.0+22899+4f2ca788.1 | RHSA-2025:2882 |
| RHEL 8.2 AUS | mecab | 0.996-1.module+el8.0.0+3898+e09bb8de.9 | RHSA-2025:2883 |
| RHEL 8.2 AUS | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2025:2883 |
| RHEL 8.2 AUS | mysql +6 | 8.0.40-1.module+el8.2.0+22898+0bdd8c5b.4 | RHSA-2025:2883 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | mysql +6 | 8.0.41-2.el9_5 | ALSA-2025:1671 |
| AlmaLinux 8 | mecab +1 | 0.996-2.module_el8.6.0+3340+d764b636 | ALSA-2025:1673 |
| AlmaLinux 8 | mecab-ipadic +1 | 2.7.0.20070801-17.module_el8.10.0+3965+b415b607 | ALSA-2025:1673 |
| AlmaLinux 8 | mysql +6 | 8.0.41-1.module_el8.10.0+3965+b415b607 | ALSA-2025:1673 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | mysql | 8.0.41-2.el9_5 | RLSA-2025:1671 |
| Rocky Linux 8 | mecab | 0.996-2.module+el8.10.0+1676+9b4b6e24 | RLSA-2025:1673 |
| Rocky Linux 8 | mecab-ipadic | 2.7.0.20070801-17.module+el8.10.0+1937+28fbbc83 | RLSA-2025:1673 |
| Rocky Linux 8 | mysql | 8.0.41-1.module+el8.10.0+1937+28fbbc83.0.1 | RLSA-2025:1673 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | mysql | 8.0.40-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | mysql +6 | 8.0.41-2.el9_5 | ELSA-2025-1671 |
| Oracle Linux 8 | mecab +1 | 0.996-2.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
| Oracle Linux 8 | mecab-ipadic +1 | 2.7.0.20070801-17.0.1.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
| Oracle Linux 8 | mysql +6 | 8.0.41-1.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
Advisories 18
- ALSA-2025:1671 Important: mysql security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:1673 Important: mysql:8.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHBA-2025:5321 Red Hat Bug Fix Advisory: mysql8.4 bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 18, 2026
- RHSA-2025:1673 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:1671 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:2883 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:2882 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:1767 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:1766 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:1756 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:1757 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- RHSA-2025:1755 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Sep 15, 2026
- WID-SEC-2025-0167 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 6, 2026
- RLSA-2025:1673 Important: mysql:8.0 security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2025:1671 Important: mysql security update Rocky Linux Security Advisories · Oct 9, 2025
- ELSA-2025-1671 Important: mysql security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 21, 2025
- ELSA-2025-1673 Important: mysql:8.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 20, 2025
- NCSC-2025-0024 Kwetsbaarheden verholpen in Oracle MySQL NCSC-NL (Netherlands) · Jan 22, 2025
References
- Oracle Advisory vendor-advisory