PT-2026-3711

CVE-2026-21964

·

Published

2026-01-20

·

Updated

2026-04-01

Description by

CVSS 2.0
6.8
Medium
MetricsAV:N/AC:L/Au:S/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Oracle MySQL versions 8.0.0 through 8.0.44 Oracle MySQL versions 8.4.0 through 8.4.7 Oracle MySQL versions 9.0.0 through 9.5.0
Description An issue exists in the Server: Thread Pooling component of Oracle MySQL that allows a high-privileged attacker with network access to cause a denial-of-service (complete hang or frequent crash) condition. The issue is easily exploitable via multiple protocols.
Recommendations Update Oracle MySQL to a version later than 8.0.44 Update Oracle MySQL to a version later than 8.4.7 Update Oracle MySQL to a version later than 9.5.0
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-20: Improper Input Validation
Related identifiers
CVE-2026-21964
BDU:2026-00699
ALSA-2026:4162
ALSA-2026:4828
ALSA-2026:5580
ALSA-2026:5640
ALSA-2026:6391
AZL-74949
AZL-75008
OESA-2026-1196
RHSA-2026:4162
RHSA-2026:4828
RHSA-2026:5580
RHSA-2026:5640
RHSA-2026:6391
USN-7994-1
USN-8006-1
Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com