How severe is CVE-2023-42463?

CVE-2023-42463 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-42463 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42463?

CVE-2023-42463 affects Wazuh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-42463?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-42463 have an EU (EUVD) identifier?

Yes. CVE-2023-42463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46903.

When was CVE-2023-42463 published?

CVE-2023-42463 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2023-42463

CVE-2023-42463 is a high-severity vulnerability in Wazuh with a CVSS 3.x base score of 7.4. 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-46903
Weakness: CWE-121
Affected product: Wazuh
Published: 2024-01-12
Last modified: 2026-06-17

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. This bug introduced a stack overflow hazard that could allow a local privilege escalation. This vulnerability was patched in version 4.5.3.

Frequently asked questions

What is CVE-2023-42463?: Wazuh is a free and open source platform used for threat prevention, detection, and response. This bug introduced a stack overflow hazard that could allow a local privilege escalation. This vulnerability was patched in version 4.5.3.
How severe is CVE-2023-42463?: CVE-2023-42463 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-42463 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42463?: CVE-2023-42463 affects Wazuh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-42463?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-42463 have an EU (EUVD) identifier?: Yes. CVE-2023-42463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46903.
When was CVE-2023-42463 published?: CVE-2023-42463 was published on 2024-01-12 and last updated on 2026-06-17.

References

https://github.com/wazuh/wazuh/security/advisories/GHSA-27p5-32pp-r58r

Affected products (1)

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

More vulnerabilities in Wazuh

CVE-2025-24016 — Critical (CVSS 9.9): Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0…
CVE-2024-32038 — Critical (CVSS 9.8): Wazuh is a free and open source platform used for threat prevention, detection, and response. There is a buffer…
CVE-2021-44079 — Critical (CVSS 9.8): In the wazuh-slack active response script in Wazuh 4.2.x before 4.2.5, untrusted user agents are passed to a curl…
CVE-2026-25770 — Critical (CVSS 9.1): Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 3.9.0…
CVE-2026-25769 — Critical (CVSS 9.1): Wazuh is a free and open source platform used for threat prevention, detection, and response. Versions 4.0.0 through…
CVE-2026-30893 — Critical (CVSS 9.0): Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.4.0 to…

All CVEs affecting Wazuh →

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities

CVE-2026-12848 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12847 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12846 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-12485 — Critical (CVSS 10.0): GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and…
CVE-2026-37541 — Critical (CVSS 10.0): Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length…
CVE-2026-42996 — Critical (CVSS 10.0): JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of…

Browse all CWE-121 (Stack-based Buffer Overflow) vulnerabilities →