{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47180", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-18T22:07:37.434Z", "datePublished": "2026-07-17T18:21:25.199Z", "dateUpdated": "2026-07-17T19:21:29.700Z"}, "containers": {"cna": {"title": "Zeroconf: Unbounded recursion in DNS compression-pointer decoder allows LAN-local denial of service", "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-9pgc-3ccv-5297", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-9pgc-3ccv-5297"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/pull/1719", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/pull/1719"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/commit/f9e23592137f30fdf7ef710dba065da31c79b1cf", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/commit/f9e23592137f30fdf7ef710dba065da31c79b1cf"}, {"name": "https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.5"}], "affected": [{"vendor": "python-zeroconf", "product": "python-zeroconf", "versions": [{"version": "< 0.149.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-17T18:21:25.199Z"}, "descriptions": [{"lang": "en", "value": "Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.5, DNSIncoming._decode_labels_at_offset recurses once per DNS-name compression pointer, and a single mDNS packet carrying chained pointers can trigger a RecursionError that escapes DNSIncoming.__init__, causing sustained CPU burn, log flooding, and degraded mDNS-dependent features for unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb). This issue is fixed in version 0.149.5."}], "source": {"advisory": "GHSA-9pgc-3ccv-5297", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-17T19:21:22.892470Z", "id": "CVE-2026-47180", "options": [{"Exploitation": "none"}, {"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": "2026-07-17T19:21:29.700Z"}}]}}

{}

{}

{}

{}