{"api_version":"1","generated_at":"2026-11-05T15:45:42+00:00","cve":"CVE-2026-64860","urls":{"html":"https://cve.report/CVE-2026-64860","api":"https://cve.report/api/cve/CVE-2026-64860.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64860","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64860"},"summary":{"title":"espressif/mdns has Uncontrolled Recursion in mDNS Name Decompression","description":"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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-10-30 13:19:38","updated_at":"2026-11-05 15:17:21"},"problem_types":["CWE-400","CWE-674","CWE-400 CWE-400: Uncontrolled Resource Consumption","CWE-674 CWE-674: Uncontrolled Recursion"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"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":[{"url":"https://github.com/espressif/esp-protocols/releases/tag/mdns-v1.11.2","name":"https://github.com/espressif/esp-protocols/releases/tag/mdns-v1.11.2","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/espressif/esp-protocols/security/advisories/GHSA-7fpr-vjw5-2c86","name":"https://github.com/espressif/esp-protocols/security/advisories/GHSA-7fpr-vjw5-2c86","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/espressif/esp-protocols/commit/95c882c7d7d661d28d4685bd052b024154a8402f","name":"https://github.com/espressif/esp-protocols/commit/95c882c7d7d661d28d4685bd052b024154a8402f","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64860","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64860","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"espressif","product":"esp-protocols","version":"affected < 1.11.2","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"esp-protocols","vendor":"espressif","versions":[{"status":"affected","version":"< 1.11.2"}]}],"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."}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-674","description":"CWE-674: Uncontrolled Recursion","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-05T14:11:08.672Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"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"}],"source":{"advisory":"GHSA-7fpr-vjw5-2c86","discovery":"UNKNOWN"},"title":"espressif/mdns has Uncontrolled Recursion in mDNS Name Decompression"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-64860","datePublished":"2026-11-05T14:11:08.672Z","dateReserved":"2026-07-20T18:31:39.291Z","dateUpdated":"2026-11-05T14:11:08.672Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-30 13:19:38","lastModifiedDate":"2026-11-05 15:17:21","problem_types":["CWE-400","CWE-674","CWE-400 CWE-400: Uncontrolled Resource Consumption","CWE-674 CWE-674: Uncontrolled Recursion"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64860","Ordinal":"1","Title":"espressif/mdns has Uncontrolled Recursion in mDNS Name Decompres","CVE":"CVE-2026-64860","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64860","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"espressif/mdns has Uncontrolled Recursion in mDNS Name Decompres"}]}}}