Title: ESP-IDF de espressif, Description: ESF-IDF es el Framework de Desarrollo de Internet de las Cosas (IoT) de Espressif. En las versiones 5.2.7, 5.3.5, 5.4.4, 5.5.4 y 6.0.1, existe una falla de lectura fuera de límites en el analizador de opciones del servidor DHCP (parse_options() en components/lwip/apps/dhcpserver/dhcpserver.c) que se incluye con el componente lwIP de ESP-IDF. El analizador recorre el campo de opciones BOOTP/DHCP sin validar que el byte de longitud de cada opción y la longitud de carga útil declarada permanezcan dentro del búfer del paquete recibido. Una solicitud DHCP manipulada puede hacer que el analizador lea más allá del final del búfer de opciones hacia la memoria heap adyacente. El problema afecta al servidor DHCP utilizado por el SoftAP de ESP-IDF y a cualquier configuración donde el dispositivo funcione como un servidor DHCP en una red local. Este problema ha sido parcheado en las versiones 5.2.8, 5.3.6, 5.4.5, 5.5.5 y 6.0.2.

{"timestamp":"2026-06-10T15:04:44.784146Z","id":"CVE-2026-45160","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"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"}]}]

OR
          *cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*
          *cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*
          *cpe:2.3:a:espressif:esp-idf:5.5.4:*:*:*:*:*:*:*
          *cpe:2.3:a:espressif:esp-idf:5.2.7:*:*:*:*:*:*:*
          *cpe:2.3:a:espressif:esp-idf:6.0.1:*:*:*:*:*:*:*

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911 Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248 Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712 Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318 Types: Patch

GitHub, Inc.: https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5 Types: Mitigation, Patch, Vendor Advisory

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.

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-125

https://github.com/espressif/esp-idf/commit/2bf4dd12002dbae60a4b21abff010ecb2b8ee82b

https://github.com/espressif/esp-idf/commit/2da2db43fd7e0bcff9e7b95f54f388296bb6f911

https://github.com/espressif/esp-idf/commit/8b4b5d5301815198d177974ffc24848f47748248

https://github.com/espressif/esp-idf/commit/9f713dbc94982d917f2d12964b233cd9efa4aeba

https://github.com/espressif/esp-idf/commit/d51b1076092487e533eadf8b48c9c8579d3a6712

https://github.com/espressif/esp-idf/commit/fba5f995436a3e3139f768b6d8f1a74d5ce1d318

https://github.com/espressif/esp-idf/security/advisories/GHSA-g764-gwc3-75m5