CVE-2025-21521
published 2025-01-21CVE-2025-21521: 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…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.07%
61.1th percentile
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
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mysql-8.0 | < mysql-8.0 8.0.40-1 (sid) | mysql-8.0 8.0.40-1 (sid) |
| oracle | mysql_server | 8.0.0 – 8.0.39 | — |
| oracle | mysql_server | 8.4.0 – 8.4.2 | — |
| oracle | mysql_server | 9.0.0 – 9.0.1 | — |
| oracle_corporation | mysql_server | * – 8.0.39 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_oracle7.5HIGH
vendor_redhat7.5HIGH
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Red Hat
mysql: MySQL Server: Denial of service in Thread Pooling component
vendor_redhat·2025-01-21·CVSS 7.5
CVE-2025-21521 [HIGH] mysql: MySQL Server: Denial of service in Thread Pooling component
mysql: MySQL Server: Denial of service in Thread Pooling component
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).
A flaw was found in MySQL Server (Thread Pooling component). This vulnerability allows a denial of service (DoS) via network access through
Oracle
Oracle Oracle MySQL Risk Matrix: Server: Thread Pooling — CVE-2025-21521
vendor_oracle·2025-01-15·CVSS 7.5
CVE-2025-21521 [HIGH] Oracle Oracle MySQL Risk Matrix: Server: Thread Pooling — CVE-2025-21521
Oracle Oracle MySQL Risk Matrix: Server: Thread Pooling vulnerability
CVE: CVE-2025-21521
CVSS: 7.5
Protocol: MySQL Protocol
Remote exploit: Yes
Affected versions: Network
Advisory: cpujan2025 (JAN 2025)
Debian
CVE-2025-21521: mysql-8.0 - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Th...
vendor_debian·2025·CVSS 7.5
CVE-2025-21521 [HIGH] CVE-2025-21521: mysql-8.0 - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Th...
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).
Scope: local
sid: resolved (fixed in 8.0.40-1)
GHSA
GHSA-2rgw-wmwq-m2w3: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)
ghsa_unreviewed·2025-01-21
CVE-2025-21521 [HIGH] CWE-770 GHSA-2rgw-wmwq-m2w3: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)
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).
OSV
CVE-2025-21521: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)
osv·2025-01-21·CVSS 7.5
CVE-2025-21521 [HIGH] CVE-2025-21521: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)
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).
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-01-21
Published