CVE-2026-21964
10 documents9 sources
Severity
4.9MEDIUM
EPSS
0.0%
top 84.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 20
Latest updateFeb 3
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. Easily exploitable vulnerability allows high 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 4.9 (Avail…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HExploitability: 1.2 | Impact: 3.6
Affected Packages4 packages
🔴Vulnerability Details
3GHSA▶
GHSA-jjjh-9j5x-gr7x: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)↗2026-01-21
OSV▶
CVE-2026-21964: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)↗2026-01-20
CVEList▶
CVE-2026-21964: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling)↗2026-01-20
📋Vendor Advisories
5Debian▶
CVE-2026-21964: mysql-8.0 - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Th...↗2026