{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45160", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-08T20:44:38.965Z", "datePublished": "2026-06-10T00:26:34.381Z", "dateUpdated": "2026-06-10T00:26:34.381Z"}, "containers": {"cna": {"title": "ESF-IDF: Out-of-bounds Read in lwIP DHCP Server Option Parser", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "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-idf/security/advisories/GHSA-g764-gwc3-75m5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5"}, {"name": "https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b"}, {"name": "https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911"}, {"name": "https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248"}, {"name": "https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba"}, {"name": "https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712"}, {"name": "https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318", "tags": ["x_refsource_MISC"], "url": "https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318"}], "affected": [{"vendor": "espressif", "product": "esp-idf", "versions": [{"version": "= 5.2.7", "status": "affected"}, {"version": "= 5.3.5", "status": "affected"}, {"version": "= 5.4.4", "status": "affected"}, {"version": "= 5.5.4", "status": "affected"}, {"version": "= 6.0.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-10T00:26:34.381Z"}, "descriptions": [{"lang": "en", "value": "ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser (parse_options() in components/lwip/apps/dhcpserver/dhcpserver.c) shipped with ESP-IDF's lwIP component. The parser walks the BOOTP/DHCP options field without validating that each option's length byte and declared payload length stay within the received packet buffer. A crafted DHCP request can cause the parser to read past the end of the options buffer into adjacent heap memory. The issue affects the DHCP server used by ESP-IDF's SoftAP and any configuration where the device runs as a DHCP server on a local network. This issue has been patched in versions 5.2.8, 5.3.6, 5.4.5, 5.5.5, and 6.0.2."}], "source": {"advisory": "GHSA-g764-gwc3-75m5", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser (parse_options() in components/lwip/apps/dhcpserver/dhcpserver.c) shipped with ESP-IDF's lwIP component. The parser walks the BOOTP/DHCP options field without validating that each option's length byte and declared payload length stay within the received packet buffer. A crafted DHCP request can cause the parser to read past the end of the options buffer into adjacent heap memory. The issue affects the DHCP server used by ESP-IDF's SoftAP and any configuration where the device runs as a DHCP server on a local network. This issue has been patched in versions 5.2.8, 5.3.6, 5.4.5, 5.5.5, and 6.0.2."}], "id": "CVE-2026-45160", "lastModified": "2026-06-10T02:16:32.520", "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": "2026-06-10T02:16:32.520", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318"}, {"source": "security-advisories@github.com", "url": "https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.2.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.3.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.4.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.5.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.0.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "esp-idf", "source": "cna", "vendor": "espressif"}, "product": "esp-idf", "vendor": "espressif"}], "created": "2026-06-10T02:30:05.506326+00:00", "updated": "2026-06-10T02:45:15.381924+00:00", "vendors": ["espressif", "espressif$PRODUCT$esp-idf"]}