How severe is CVE-2024-42327?

CVE-2024-42327 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-42327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 79% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42327?

CVE-2024-42327 affects Zabbix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42327?

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-2024-42327 have an EU (EUVD) identifier?

Yes. CVE-2024-42327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39873.

When was CVE-2024-42327 published?

CVE-2024-42327 was published on 2024-11-27 and last updated on 2026-06-17.

CVE-2024-42327

CVE-2024-42327 is a critical-severity vulnerability in Zabbix with a CVSS 3.x base score of 9.9. Its EPSS exploit-prediction score of 79% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 79% (100th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-39873
Weakness: CWE-89
Affected product: Zabbix
Published: 2024-11-27
Last modified: 2026-06-17

Description

A non-admin user account on the Zabbix frontend with the default User role, or with any other role that gives API access can exploit this vulnerability. An SQLi exists in the CUser class in the addRelatedObjects function, this function is being called from the CUser.get function which is available for every user who has API access.

Frequently asked questions

What is CVE-2024-42327?: A non-admin user account on the Zabbix frontend with the default User role, or with any other role that gives API access can exploit this vulnerability. An SQLi exists in the CUser class in the addRelatedObjects function, this function is being called from the CUser.get function which is available for every user who has API access.
How severe is CVE-2024-42327?: CVE-2024-42327 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-42327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 79% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42327?: CVE-2024-42327 affects Zabbix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42327?: 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-2024-42327 have an EU (EUVD) identifier?: Yes. CVE-2024-42327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39873.
When was CVE-2024-42327 published?: CVE-2024-42327 was published on 2024-11-27 and last updated on 2026-06-17.

References

https://support.zabbix.com/browse/ZBX-25623

Affected products (1)

cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*

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