Wazuh vulnerable to NULL pointer dereference in DecodeCiscat
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, DecodeCiscat() implementation does not check the return the value of cJSON_GetObjectItem() for a possible NULL value in case of an error. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-62791
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 16:09 UTC · Revision 1
Source evidence
Wazuh vulnerable to NULL pointer dereference in DecodeCiscat
core-osv · Original sourcePublished 29 Oct 2025, 16:48 UTC
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, DecodeCiscat() implementation does not check the return the value of cJSON_GetObjectItem() for a possible NULL value in case of an error. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0.
osv:CVE-2025-62791
Complete source record
{
"id": "f661b80062db1c379a673a16e934e5ea61df6d15a82ef377aae66e492d65d0b2",
"url": "https://osv.dev/vulnerability/CVE-2025-62791",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Wazuh vulnerable to NULL pointer dereference in DecodeCiscat",
"summary": "Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, DecodeCiscat() implementation does not check the return the value of cJSON_GetObjectItem() for a possible NULL value in case of an error. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0.",
"evidence": "osv:CVE-2025-62791",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-62791",
"aliases": [
"CVE-2025-62791",
"GHSA-gcwf-6p6m-gvm7"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wazuh/wazuh",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "b3de9acf06147d614f053e87f959a75a0a132e86"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.11.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"cpe": "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "4.11.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v3.13.1",
"v3.13.0",
"v3.12.0",
"v3.8.0",
"v3.7.0",
"v3.6.1",
"v3.6.0",
"v3.5.0",
"v3.2.0",
"v3.1.0",
"v2.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-62791.json"
}
}
],
"modified": "2026-10-28T02:30:20.621305886Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62791.json",
"https://github.com/wazuh/wazuh/security/advisories/GHSA-gcwf-6p6m-gvm7",
"https://nvd.nist.gov/vuln/detail/CVE-2025-62791"
],
"provider_metadata": {
"cwe_ids": [
"CWE-252",
"CWE-476"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62791.json"
}
},
"related_cves": [
{
"value": "CVE-2025-62791",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 486952,
"published_at": "2025-10-29T16:48:25.22+00:00"
}