Cyber Resilience

CVE-2023-21887

Oracle Mysql 8.0.0 – 8.0.31

Published
18 January 2023
Modified
21 November 2024
Patch / advisory
View 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 0.43 99th percentile
Risk Priority 59 floored blend · peak EPSS

Summary

CVE-2023-21887 is a medium-severity an unspecified weakness vulnerability in Oracle Mysql. Its CVSS base score is 4.9 (Medium).

Operationally, ranked in the top 1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-21887 is a denial-of-service vulnerability in the Server: GIS component of Oracle MySQL Server versions 8.0.31 and earlier. The flaw is rated CVSS 4.9 and stems from an easily exploitable condition that requires no user interaction beyond network access.

A high-privileged attacker with network connectivity via multiple protocols can trigger the issue to cause a hang or repeated crash, resulting in complete loss of availability for the MySQL instance. No confidentiality or integrity impact is possible.

The January 2023 Oracle Critical Patch Update advisory addresses the issue and directs administrators to apply the corresponding MySQL 8.0.32 or later release that resolves the GIS component defect.

The associated EPSS score has remained at 0.4935 with no material increase after disclosure.

EU & UK References

Vulnerability Data

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: GIS). 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)
NVD-CWE-noinfo

Related Threats

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Affected Assets

oracle
mysql
8.0.0 — 8.0.31

Mitigating Controls

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

References