CVE-2023-21962

MEDIUMNVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2023-04-18. NVD baseline CVSS 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 4.9Exploit: NoneExposed: 0

A fix is available — apply it.

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are 8.0.32 and prior. 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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

CVSS v3
4.9
EG Score
4.9(medium)
EG Risk
—
EPSS
69.4%
KEV
Not listed

Published

April 18, 2023

Last Modified

November 21, 2024

References (10)

Vendor Advisories for CVE-2023-21962(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumysql-testsuite-5.7 (5.7.42-0ubuntu0.18.04.1) @ bionic2026-05-25ubuntu
redhatrh-mysql80-mysql-0:8.0.36-1.el72024-04-30redhat
redhatmysql-0:8.0.36-1.el9_32024-03-05redhat
redhatmysql:8.0-8090020240126173013.a75119d52024-02-20redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 109 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2023-21962?
CVE-2023-21962 is a medium vulnerability published on April 18, 2023. Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are 8.0.32 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server.…
When was CVE-2023-21962 disclosed?
CVE-2023-21962 was first published in the National Vulnerability Database on April 18, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-21962 actively exploited?
CVE-2023-21962 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-21962?
CVE-2023-21962 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2023-21962?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-21962, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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