CVE-2024-1243

CVE-2024-1243 is a high-severity vulnerability in Wazuh with a CVSS 3.x base score of 7.2. 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-20.

Key facts

Description

Improper input validation in the Wazuh agent for Windows prior to version 4.8.0 allows an attacker with control over the Wazuh server or agent key to configure the agent to connect to a malicious UNC path. This results in the leakage of the machine account NetNTLMv2 hash, which can be relayed for remote code execution or used to escalate privileges to SYSTEM via AD CS certificate forging and other similar attacks.

Frequently asked questions

What is CVE-2024-1243?
Improper input validation in the Wazuh agent for Windows prior to version 4.8.0 allows an attacker with control over the Wazuh server or agent key to configure the agent to connect to a malicious UNC path. This results in the leakage of the machine account NetNTLMv2 hash, which can be relayed for remote code execution or used to escalate privileges to SYSTEM via AD CS certificate forging and other similar attacks.
How severe is CVE-2024-1243?
CVE-2024-1243 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-1243 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-1243?
CVE-2024-1243 affects Wazuh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-1243?
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-2024-1243 have an EU (EUVD) identifier?
Yes. CVE-2024-1243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17008.
When was CVE-2024-1243 published?
CVE-2024-1243 was published on 2025-06-11 and last updated on 2026-06-17.

References

Affected products (1)

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