Cyber Resilience

CVE-2024-21509

MediumPublic PoC

Published: 10 April 2024

Published
10 April 2024
Modified
17 June 2025
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS Score 0.0076 73.9th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-21509 is a medium-severity Prototype Pollution (CWE-1321) vulnerability in Sidorares Mysql2. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 26.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Versions of the package mysql2 before 3.9.4 are vulnerable to Prototype Poisoning due to insecure results object creation and improper user input sanitization passed through parserFn in text_parser.js and binary_parser.js.

CWE(s)
CWE-1321

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

sidorares
mysql2
≤ 3.9.4

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References