CVE-2025-21543

mediumCVSS 4.9covered by 1 sourcefirst seen 2026-08-06

CSIRTS triage

vendor: Oracle product: MySQL ServerOtheraffected: 8.0.40 and prior, 8.4.3 and prior, 9.1.0 and prior

What: Easily exploitable vulnerability in the Server component related to packaging.
Who is affected: MySQL Server deployments running versions 8.0.40, 8.4.3, 9.1.0 or earlier with high-privileged network-accessible accounts.
Urgency: Medium urgency; CVSS 4.9 indicates moderate risk requiring high privilege and network access.
Action: Upgrade MySQL Server to a patched version above the affected ranges.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.87% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.

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