CVE-2025-21566
published 2025-01-21CVE-2025-21566: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. Easily…
PriorityP434medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.68%
48.6th percentile
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. 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).
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mysql-8.0 | — | — |
| oracle | mysql_server | 9.0.0 – 9.1.0 | — |
| oracle_corporation | mysql_server | * – 9.1.0 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_debian6.5LOW
vendor_oracle6.5MEDIUM
vendor_redhat6.5MEDIUM
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Red Hat
mysql: Denial of Service Vulnerability in MySQL Server Optimizer
vendor_redhat·2025-01-21·CVSS 6.5
CVE-2025-21566 [MEDIUM] CWE-404 mysql: Denial of Service Vulnerability in MySQL Server Optimizer
mysql: Denial of Service Vulnerability in MySQL Server Optimizer
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. 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).
A flaw was found in MySQL Server, specifically in the Optimizer component. This vulnerability allows a low-privileged attacker to cause a hang or frequently repeatable crash, meaning a c
Oracle
Oracle Oracle MySQL Risk Matrix: Server: Optimizer — CVE-2025-21566
vendor_oracle·2025-01-15·CVSS 6.5
CVE-2025-21566 [MEDIUM] Oracle Oracle MySQL Risk Matrix: Server: Optimizer — CVE-2025-21566
Oracle Oracle MySQL Risk Matrix: Server: Optimizer vulnerability
CVE: CVE-2025-21566
CVSS: 6.5
Protocol: MySQL Protocol
Remote exploit: No
Affected versions: Network
Advisory: cpujan2025 (JAN 2025)
Debian
CVE-2025-21566: mysql-8.0 - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Op...
vendor_debian·2025·CVSS 6.5
CVE-2025-21566 [MEDIUM] CVE-2025-21566: mysql-8.0 - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Op...
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. 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).
Scope: local
sid: resolved
OSV
CVE-2025-21566: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
osv·2025-01-21·CVSS 6.5
CVE-2025-21566 [MEDIUM] CVE-2025-21566: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. 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).
GHSA
GHSA-4x4h-rvfw-x95m: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
ghsa_unreviewed·2025-01-21
CVE-2025-21566 [MEDIUM] CWE-732 GHSA-4x4h-rvfw-x95m: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.1.0 and prior. 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).
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-01-21
Published