How severe is CVE-2024-21166?

CVE-2024-21166 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2024-21166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21166?

CVE-2024-21166 primarily affects Oracle Mysql. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21166?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21166 have an EU (EUVD) identifier?

Yes. CVE-2024-21166 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18880.

When was CVE-2024-21166 published?

CVE-2024-21166 was published on 2024-07-16 and last updated on 2026-06-17.

CVE-2024-21166

CVE-2024-21166 is a medium-severity vulnerability in Oracle Mysql with a CVSS 3.x base score of 5.9. 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18880
Weakness: CWE-285
Affected product: Oracle Mysql
Published: 2024-07-16
Last modified: 2026-06-17

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.36 and prior and 8.3.0 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Server accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 5.9 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H).

Frequently asked questions

What is CVE-2024-21166?: Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.36 and prior and 8.3.0 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Server accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 5.9 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H).
How severe is CVE-2024-21166?: CVE-2024-21166 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2024-21166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21166?: CVE-2024-21166 primarily affects Oracle Mysql. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21166 have an EU (EUVD) identifier?: Yes. CVE-2024-21166 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18880.
When was CVE-2024-21166 published?: CVE-2024-21166 was published on 2024-07-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:8.3.0:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

222.90.32.158 (ipv4-addr)
43.155.134.4 (ipv4-addr)
36.112.133.74 (ipv4-addr)
121.229.191.90 (ipv4-addr)
182.18.161.165 (ipv4-addr)
14.29.214.161 (ipv4-addr)
14.18.113.233 (ipv4-addr)
115.191.58.71 (ipv4-addr)