CVE-2025-62820

{"id": "CVE-2025-62820", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62820", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-23T13:22:11.383709Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 2.7, "exploitabilityScore": 1.8}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "Slack", "product": "Nebula", "versions": [{"status": "affected", "version": "0", "lessThan": "1.9.7", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2025-10-23T04:18:57.453", "references": [{"url": "https://github.com/slackhq/nebula/pull/1493", "source": "cve@mitre.org"}, {"url": "https://github.com/slackhq/nebula/pull/1494", "source": "cve@mitre.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-420"}]}], "descriptions": [{"lang": "en", "value": "Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network."}, {"lang": "es", "value": "Slack Nebula anterior a la versi\u00f3n 1.9.7 maneja incorrectamente CIDR en algunas configuraciones y por lo tanto acepta direcciones IP de origen arbitrarias dentro de la red Nebula."}], "lastModified": "2026-10-08T11:10:00.250", "sourceIdentifier": "cve@mitre.org"}