How severe is CVE-2023-49275?

CVE-2023-49275 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-49275 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-49275?

CVE-2023-49275 affects Wazuh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-49275?

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

Does CVE-2023-49275 have an EU (EUVD) identifier?

Yes. CVE-2023-49275 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53275.

When was CVE-2023-49275 published?

CVE-2023-49275 was published on 2024-04-19 and last updated on 2026-06-17.

CVE-2023-49275

CVE-2023-49275 is a medium-severity vulnerability in Wazuh with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-53275
Weakness: CWE-476
Affected product: Wazuh
Published: 2024-04-19
Last modified: 2026-06-17

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. A NULL pointer dereference was detected during fuzzing of the analysis engine, allowing malicious clients to DoS the analysis engine. The bug occurs when `analysisd` receives a syscollector message with the `hotfix` `msg_type` but lacking a `timestamp`. It uses `cJSON_GetObjectItem()` to get the `timestamp` object item and dereferences it without checking for a `NULL` value. A malicious client can DoS the analysis engine. This vulnerability is fixed in 4.7.1.

Frequently asked questions

What is CVE-2023-49275?: Wazuh is a free and open source platform used for threat prevention, detection, and response. A NULL pointer dereference was detected during fuzzing of the analysis engine, allowing malicious clients to DoS the analysis engine. The bug occurs when `analysisd` receives a syscollector message with the `hotfix` `msg_type` but lacking a `timestamp`. It uses `cJSON_GetObjectItem()` to get the `timestamp` object item and dereferences it without checking for a `NULL` value. A malicious client can DoS the analysis engine. This vulnerability is fixed in 4.7.1.
How severe is CVE-2023-49275?: CVE-2023-49275 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-49275 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-49275?: CVE-2023-49275 affects Wazuh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-49275?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-49275 have an EU (EUVD) identifier?: Yes. CVE-2023-49275 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53275.
When was CVE-2023-49275 published?: CVE-2023-49275 was published on 2024-04-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*

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