{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64860", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "dateReserved": "2026-07-20T18:31:39.291Z", "dateUpdated": "2026-11-05T14:11:08.672Z", "assignerShortName": "GitHub_M", "datePublished": "2026-11-05T14:11:08.672Z"}, "containers": {"cna": {"title": "espressif/mdns has Uncontrolled Recursion in mDNS Name Decompression", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"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/espressif/esp-protocols/security/advisories/GHSA-7fpr-vjw5-2c86", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/espressif/esp-protocols/security/advisories/GHSA-7fpr-vjw5-2c86"}, {"name": "https://github.com/espressif/esp-protocols/commit/95c882c7d7d661d28d4685bd052b024154a8402f", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-protocols/commit/95c882c7d7d661d28d4685bd052b024154a8402f"}, {"name": "https://github.com/espressif/esp-protocols/releases/tag/mdns-v1.11.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-protocols/releases/tag/mdns-v1.11.2"}], "affected": [{"vendor": "espressif", "product": "esp-protocols", "versions": [{"version": "< 1.11.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-05T14:11:08.672Z"}, "descriptions": [{"lang": "en", "value": "ESP-Protocols is a collection of protocol components for ESP-IDF. Prior to mDNS version 1.11.2, the `mdns` component follows DNS name-compression pointers recursively when parsing fully qualified domain names (FQDNs) in inbound mDNS packets without capping pointer-follow depth in `mdns_utils_read_fqdn()`. An unauthenticated attacker on the same link-local network can send a crafted packet to UDP port 5353 on an `ESP-IDF` device using `espressif/mdns` with mDNS enabled. Deep recursion exhausts the fixed-size stack of the mDNS FreeRTOS task, causing a controlled panic and reboot; persistent malicious traffic can cause a crash loop. No confidentiality or integrity impact has been demonstrated, and remote code execution is not claimed. This issue is fixed in mDNS version 1.11.2."}], "source": {"advisory": "GHSA-7fpr-vjw5-2c86", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "esp-protocols", "vendor": "espressif", "versions": [{"status": "affected", "version": "< 1.11.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ESP-Protocols is a collection of protocol components for ESP-IDF. Prior to mDNS version 1.11.2, the `mdns` component follows DNS name-compression pointers recursively when parsing fully qualified domain names (FQDNs) in inbound mDNS packets without capping pointer-follow depth in `mdns_utils_read_fqdn()`. An unauthenticated attacker on the same link-local network can send a crafted packet to UDP port 5353 on an `ESP-IDF` device using `espressif/mdns` with mDNS enabled. Deep recursion exhausts the fixed-size stack of the mDNS FreeRTOS task, causing a controlled panic and reboot; persistent malicious traffic can cause a crash loop. No confidentiality or integrity impact has been demonstrated, and remote code execution is not claimed. This issue is fixed in mDNS version 1.11.2."}], "id": "CVE-2026-64860", "lastModified": "2026-11-05T15:17:21.777", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-30T13:19:38.980", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-protocols/commit/95c882c7d7d661d28d4685bd052b024154a8402f"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-protocols/releases/tag/mdns-v1.11.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-protocols/security/advisories/GHSA-7fpr-vjw5-2c86"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-11-05T16:00:19.825194+00:00", "updated": "2026-11-05T16:00:19.825210+00:00", "vendors": []}