CVE-2025-53007: fallo de gravedad alta en espressif arduino-esp32
arduino-esp32 vulnerable to CRLF injection in WebServer.cpp
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.9epss 0.5%
arduino-esp32 provides an Arduino core for the ESP32. Versions prior to 3.3.0-RC1 and 3.2.1 contain a HTTP Response Splitting vulnerability. The `sendHeader` function takes arbitrary input for the HTTP header name and value, concatenates them into an HTTP header line, and appends this to the outgoing HTTP response headers. There is no validation or sanitization of the `name` or `value` parameters before they are included in the HTTP response. If an attacker can control the input to `sendHeader` (either directly or indirectly), they could inject carriage return (`\r`) or line feed (`\n`) characters into either the header name or value. This could allow the attacker to inject additional headers, manipulate the structure of the HTTP response, potentially inject an entire new HTTP response (HTTP Response Splitting), and/or ause header confusion or other HTTP protocol attacks. Versions 3.3.0-RC1 and 3.2.1 contain a fix for the issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Productos afectados
espressif · arduino-esp32CVEs relacionadas — espressif arduino-esp32
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-45798CRITICALMultiple Poisoned Pipeline Execution (PPE) vulnerabilitiesEPSS 0.9%CVE-2026-42854CRITICALarduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCEEPSS 0.6%CVE-2026-42855HIGHarduino-esp32: Digest authentication URI mismatch bypass in WebServer allows cross-resource replay attackEPSS 0.4%CVE-2025-53540HIGHCSRF Vulnerability in Firmware Update Endpoints Allows Remote Code ExecutionEPSS 0.3%CVE-2026-41429HIGHImproper validation of NBNS name_len in arduino-esp32 NetBIOS leads to memory corruptionEPSS 0.3%
Referencias
https://github.com/espressif/arduino-esp32/blob/9e61fa7e4bce59c05cb17c15b11b53b9bafca077/libraries/WebServer/src/WebServer.cpp#L504-L521https://github.com/espressif/arduino-esp32/blob/9e61fa7e4bce59c05cb17c15b11b53b9bafca077/libraries/WebServer/src/WebServer.cpp#L577-L582https://github.com/espressif/arduino-esp32/commit/21640ac82a1bb5efa8cf0b3841be1ac80add6785https://github.com/espressif/arduino-esp32/security/advisories/GHSA-5476-9jjq-563m