{"api_version":"1","generated_at":"2026-04-22T21:38:37+00:00","cve":"CVE-2022-23635","urls":{"html":"https://cve.report/CVE-2022-23635","api":"https://cve.report/api/cve/CVE-2022-23635.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-23635","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-23635"},"summary":{"title":"CVE-2022-23635","description":"Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. 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Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent."}]},"impact":{"cvss":{"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-287: Improper Authentication"}]}]},"references":{"reference_data":[{"name":"https://github.com/istio/istio/security/advisories/GHSA-856q-xv3c-7f2f","refsource":"CONFIRM","url":"https://github.com/istio/istio/security/advisories/GHSA-856q-xv3c-7f2f"},{"name":"https://github.com/istio/istio/commit/5f3b5ed958ae75156f8656fe7b3794f78e94db84","refsource":"MISC","url":"https://github.com/istio/istio/commit/5f3b5ed958ae75156f8656fe7b3794f78e94db84"},{"name":"https://istio.io/latest/news/security/istio-security-2022-003","refsource":"MISC","url":"https://istio.io/latest/news/security/istio-security-2022-003"}]},"source":{"advisory":"GHSA-856q-xv3c-7f2f","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2022-02-22 22:15:00","lastModifiedDate":"2023-07-13 16:32:00","problem_types":["CWE-1284"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*","versionStartIncluding":"1.13.0","versionEndExcluding":"1.13.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*","versionStartIncluding":"1.12.0","versionEndExcluding":"1.12.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*","versionEndExcluding":"1.11.7","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"23635","Ordinal":"226437","Title":"CVE-2022-23635","CVE":"CVE-2022-23635","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"23635","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}