vuln-cve/data/2026/54xxx/CVE-2026-54084.json

{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-54084",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-11T18:44:47.761Z",
        "datePublished": "2026-08-27T23:12:20.239Z",
        "dateUpdated": "2026-08-28T15:27:56.072Z"
    },
    "containers": {
        "cna": {
            "title": "Wazuh agent enrollment NULL pointer dereference via malformed manager response",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-476",
                            "lang": "en",
                            "description": "CWE-476: NULL Pointer Dereference",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/wazuh/wazuh/security/advisories/GHSA-ppc7-hj9v-vx39",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-ppc7-hj9v-vx39"
                },
                {
                    "name": "https://github.com/wazuh/wazuh/commit/7dfbb4a292bc6ae8e3bb4c1982f687f35216a748",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/wazuh/wazuh/commit/7dfbb4a292bc6ae8e3bb4c1982f687f35216a748"
                }
            ],
            "affected": [
                {
                    "vendor": "wazuh",
                    "product": "wazuh",
                    "versions": [
                        {
                            "version": ">= 4.0.0, < 4.14.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-27T23:12:20.239Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. In versions 4.0.0 through 4.14.6, a malicious or man-in-the-middle enrollment manager can crash a Wazuh agent during enrollment by returning a malformed key response with fewer than four fields, causing a NULL pointer dereference. The  w_enrollment_process_agent_key()  routine splits the manager-provided key into four space-separated fields but does not verify that all fields are present before passing them to validators. Because OS_StrBreak() leaves missing trailing entries as NULL and OS_IsValidName() calls strlen() on its argument without a NULL check, a response such as  OSSEC K:'1'  reaches OS_IsValidName(NULL) and terminates the agent process. Since Wazuh permits enrollment against an unverified manager when no CA certificate is configured, an attacker operating a rogue manager or intercepting the enrollment flow can deterministically crash agents, resulting in denial of service. This issue is fixed in version 4.14.7."
                }
            ],
            "source": {
                "advisory": "GHSA-ppc7-hj9v-vx39",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-ppc7-hj9v-vx39",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-28T15:27:13.682831Z",
                                "id": "CVE-2026-54084",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-28T15:27:56.072Z"
                }
            }
        ]
    }
}