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Public proof of conceptFix available

CVE-2024-21511

A public proof of concept exists; no exploitation attested.

  • Published2024-04-23
  • Fixed in3.9.7
  • WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2024-04-2305:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-21511?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-21511?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP
Mysql2
BranchAffectedFixed in
3.9< 3.9.73.9.7

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Mysql2 to 3.9.7

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2024-04-25
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-94read 2026-10-23
  • FIRST EPSSEPSS score1.0 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2024-04-23
Last Modified
2026-06-17
NVD status
Deferred

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.

Is CVE-2024-21511 actively exploited?

A proof-of-concept exploit exists for CVE-2024-21511, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-21511?

CVE-2024-21511 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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