How severe is CVE-2024-21511?

CVE-2024-21511 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21511?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-21511 have an EU (EUVD) identifier?

Yes. CVE-2024-21511 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1092.

When was CVE-2024-21511 published?

CVE-2024-21511 was published on 2024-04-23 and last updated on 2026-06-17.

CVE-2024-21511

CVE-2024-21511 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-1092
Weakness: CWE-94
Published: 2024-04-23
Last modified: 2026-06-17

Description

Versions of the package mysql2 before 3.9.7 are vulnerable to Arbitrary Code Injection due to improper sanitization of the timezone parameter in the readCodeFor function by calling a native MySQL Server date/time function.

Frequently asked questions

What is CVE-2024-21511?: Versions of the package mysql2 before 3.9.7 are vulnerable to Arbitrary Code Injection due to improper sanitization of the timezone parameter in the readCodeFor function by calling a native MySQL Server date/time function.
How severe is CVE-2024-21511?: CVE-2024-21511 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-21511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-21511 have an EU (EUVD) identifier?: Yes. CVE-2024-21511 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1092.
When was CVE-2024-21511 published?: CVE-2024-21511 was published on 2024-04-23 and last updated on 2026-06-17.

References

Other CWE-94 (Code Injection) vulnerabilities

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CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

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