FKIE_CVE-2025-69873

Vulnerability from fkie_nvd - Published: 2026-02-11 19:15 - Updated: 2026-06-30 05:17
Summary
ajv (Another JSON Schema Validator) before 8.18.0 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., "^(a|a)*$") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation. This issue is also fixed in version 6.14.0.
References
cve@mitre.orghttps://github.com/EthanKim88/ethan-cve-disclosures/blob/main/CVE-2025-69873-ajv-ReDoS.md
cve@mitre.orghttps://github.com/advisories/GHSA-2g4f-4pwh-qvx6
cve@mitre.orghttps://github.com/ajv-validator/ajv/pull/2588
cve@mitre.orghttps://github.com/ajv-validator/ajv/pull/2590
cve@mitre.orghttps://github.com/ajv-validator/ajv/releases/tag/v6.14.0
cve@mitre.orghttps://github.com/github/advisory-database/pull/6991
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:10093
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:13512
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:14774
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:15091
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:16874
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:19712
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:26211
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:26214
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:33371
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:5168
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:5807
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:5907
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:5910
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6192
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6277
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6309
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6497
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6567
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6568
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:6802
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:7314
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:9742
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2025-69873
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2439070
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-69873.json
Impacted products
Vendor Product Version

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "ajv",
          "vendor": "ajv.js",
          "versions": [
            {
              "lessThan": "6.14.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.17.2",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.5::el8",
            "cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8",
            "cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.5::el9",
            "cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9",
            "cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2.5 for RHEL 9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.6::el9",
            "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9",
            "cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:network_observ_optr:1.11::el9"
          ],
          "defaultStatus": "affected",
          "product": "Network Observability (NETOBSERV) 1.11.2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.6::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2.6",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhdh:1.8::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Developer Hub 1.8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhdh:1.9::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Developer Hub 1.9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai:2.16::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift AI 2.16",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai:3.3::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift AI 3.3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4.14::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4.14",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4.15::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4.15",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4.16::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4.16",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4.17::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4.17",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4.19::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Container Platform 4.19",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3.27::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Dev Spaces 3.27",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quay:3.14::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Quay 3.14",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quay:3.15::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Quay 3.15",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quay:3.16::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Quay 3.16",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quay:3.9::el8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Quay 3.9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.18::el9"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Satellite 6.18",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:confidential_compute_attestation:1"
          ],
          "defaultStatus": "affected",
          "product": "Confidential Compute Attestation",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:logging:5"
          ],
          "defaultStatus": "affected",
          "product": "Logging Subsystem for Red Hat OpenShift",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:workload_availability_nhc:0"
          ],
          "defaultStatus": "affected",
          "product": "Node HealthCheck Operator",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_pipelines:1"
          ],
          "defaultStatus": "affected",
          "product": "OpenShift Pipelines",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_registry:2"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat build of Apicurio Registry 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:connectivity_link:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Connectivity Link 1",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Data Grid 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:edge_manager:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Edge Manager 1",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:enterprise_linux_ai:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux AI (RHEL AI) 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Fuse 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_data_foundation:4"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Openshift Data Foundation 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift Dev Spaces",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_gitops:1"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat OpenShift GitOps",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:amq_streams:3"
          ],
          "defaultStatus": "affected",
          "product": "streams for Apache Kafka 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.6::el10",
            "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Ansible Automation Platform 2.6 for RHEL 10",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:cryostat:4"
          ],
          "defaultStatus": "unaffected",
          "product": "Cryostat 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:gatekeeper:3"
          ],
          "defaultStatus": "unaffected",
          "product": "Gatekeeper 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:multicluster_engine"
          ],
          "defaultStatus": "unaffected",
          "product": "Multicluster Engine for Kubernetes",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:network_observ_optr:1"
          ],
          "defaultStatus": "unaffected",
          "product": "Network Observability Operator",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:2"
          ],
          "defaultStatus": "unaffected",
          "product": "OpenShift Service Mesh 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_mesh:3"
          ],
          "defaultStatus": "unaffected",
          "product": "OpenShift Service Mesh 3",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:acm:2"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Advanced Cluster Management for Kubernetes 2",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:advanced_cluster_security:4"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Advanced Cluster Security 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:amq_broker:7"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat AMQ Broker 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:apache_camel_hawtio:4"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat build of Apache Camel - HawtIO 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:optaplanner:::el6"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat build of OptaPlanner 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:directory_server:11"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Directory Server 11",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:directory_server:12"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Directory Server 12",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:directory_server:13"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Directory Server 13",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Process Automation 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Satellite 6",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/a:redhat:amq_streams:2"
          ],
          "defaultStatus": "unaffected",
          "product": "streams for Apache Kafka 2",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ajv (Another JSON Schema Validator) before 8.18.0 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., \"^(a|a)*$\") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation. This issue is also fixed in version 6.14.0."
    },
    {
      "lang": "es",
      "value": "ajv (Another JSON Schema Validator) hasta la versi\u00f3n 8.17.1 es vulnerable a la denegaci\u00f3n de servicio por expresiones regulares (ReDoS) cuando la opci\u00f3n $data est\u00e1 habilitada. La palabra clave \u0027pattern\u0027 acepta datos en tiempo de ejecuci\u00f3n a trav\u00e9s de la sintaxis JSON Pointer (referencia $data), que se pasa directamente al constructor JavaScript RegExp() sin validaci\u00f3n. Un atacante puede inyectar un patr\u00f3n de expresi\u00f3n regular malicioso (por ejemplo, \u0027^(a|a)*$\u0027) combinado con una entrada manipulada para causar un retroceso catastr\u00f3fico. Una carga \u00fatil de 31 caracteres causa aproximadamente 44 segundos de bloqueo de CPU, y cada car\u00e1cter adicional duplica el tiempo de ejecuci\u00f3n. Esto permite una denegaci\u00f3n de servicio completa con una \u00fanica solicitud HTTP contra cualquier API que utilice ajv con $data: true para la validaci\u00f3n din\u00e1mica de esquemas."
    }
  ],
  "id": "CVE-2025-69873",
  "lastModified": "2026-06-30T05:17:30.927",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 2.9,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
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          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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