Cyber Resilience

CVE-2026-21968

Oracle Mysql Server 8.0.0 – 8.0.44

Published
20 January 2026
Modified
29 January 2026
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0027 18th percentile
Risk Priority 49 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-21968 is a medium-severity an unspecified weakness vulnerability in Oracle Mysql Server. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 18th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). 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 low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful…

more

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).

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-21865Same product: Oracle Mysql Server
CVE-2023-21966Same product: Oracle Mysql Server
CVE-2025-30699Same product: Oracle Mysql Server
CVE-2024-20978Same product: Oracle Mysql Server
CVE-2026-21949Same product: Oracle Mysql Server
CVE-2024-20966Same product: Oracle Mysql Server
CVE-2023-21873Same product: Oracle Mysql Server
CVE-2025-53032Same product: Oracle Mysql Server
CVE-2026-21929Same product: Oracle Mysql Server
CVE-2026-34304Same product: Oracle Mysql Server

Affected Assets

oracle
mysql server
8.0.0 — 8.0.44 · 8.4.0 — 8.4.7 · 9.0.0 — 9.5.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References