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CVE-2024-21008: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.36 and prior and 8.3.0 and prior. Difficult to exploit 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

mediumCVSS 4.4CVE-2024-21008

CSIRTS triage

vendor: Oracleproduct: MySQL ServerDenial of serviceaffected: 8.0.36 and prior, 8.3.0 and prior
What
Optimizer component vulnerability difficult to exploit affecting query processing.
Who is affected
MySQL Server 8.0.36 and earlier or 8.3.0 and earlier deployments accessible via network.
Urgency
Medium priority; requires high privilege and network access, suitable for standard patching cycle.
Action
Upgrade MySQL Server to version 8.0.37 or 8.3.1 or later.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 4.4
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21008

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-21008coverage & exploitation statusNVD · CVE.org

Recent advisories for MySQL Server product

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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