What is CVE-2024-21508?

CVE-2024-21508 is a critical-severity vulnerability in Mysql2, classified under Code Injection. CVSS score: 9.8/10. Published 2024-04-11.

How severe is CVE-2024-21508?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-21508 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Mysql2

CVE-2024-21508

Versions of the package mysql2 before 3.9.4 are vulnerable to Remote Code Execution (RCE) via the readCodeFor function due to improper validation of the supportBigNumbers and bigNumberStrings values.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.026 (83.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a Mysql2 — versions 0

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-21508?: CVE-2024-21508 is a critical-severity vulnerability in Mysql2, classified under Code Injection. CVSS score: 9.8/10. Published 2024-04-11.
How severe is CVE-2024-21508?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-21508 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.