Security Resilience

CVE-2023-21873

Oracle Mysql Server 8.0.0 – 8.0.31

Published
18 January 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 4.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0086 58th percentile
Risk Priority 41 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-2023-21873 is a medium-severity an unspecified weakness vulnerability in Oracle Mysql Server. Its CVSS base score is 4.9 (Medium).

Operationally, ranked in the top 42% of CVEs by exploit likelihood; 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 8.0.31 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks…

more

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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

CWE(s)

Related Threats

CVEs Like This One

CVE-2026-35238Same product: Oracle Mysql Server
CVE-2023-21966Same product: Oracle Mysql Server
CVE-2023-21869Same product: Oracle Mysql Server
CVE-2026-21929Same product: Oracle Mysql Server
CVE-2025-30704Same product: Oracle Mysql Server
CVE-2024-21057Same product: Oracle Mysql Server
CVE-2025-30695Same product: Oracle Mysql Server
CVE-2026-21968Same product: Oracle Mysql Server
CVE-2025-53044Same product: Oracle Mysql Server
CVE-2025-53067Same product: Oracle Mysql Server

Affected Assets

oracle
mysql server
8.0.0 — 8.0.31

Mitigating Controls

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

References