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CVE-2024-20966: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.35 and prior and 8.2.0 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

mediumCVSS 4.9CVE-2024-20966

CSIRTS triage

vendor: Oracleproduct: MySQL ServerDenial of serviceaffected: 8.0.35 and prior, 8.2.0 and prior
What
An optimizer component vulnerability allows a high-privileged attacker to compromise MySQL Server.
Who is affected
Deployments running MySQL 8.0.35 or earlier and 8.2.0 or earlier with high-privileged users with network access.
Urgency
Medium priority with a CVSS of 4.9; not currently exploited but easily exploitable by high-privilege users.
Action
Upgrade to a patched version after 8.0.35 or 8.2.0.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 4.9
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20966

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-2024-20966coverage & exploitation statusNVD · CVE.org

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