{"uuid": "258a1784-cfd1-4df3-8279-077b8258a824", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-42854", "type": "seen", "source": "https://t.me/shimiscyberworld/1430", "content": "\ud83d\udee1\ufe0f SCW \u2502 Critical Vulnerability\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\n\n\u26a0\ufe0f CVE-2026-42854 \u2014 CVSS 9.8\nCVE-2026-42854: Critical RCE in arduino-esp32 WebServer\n\nCVE-2026-42854 \u2014 arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form \n\n\ud83d\udd34 Critical \u00b7 3 ATT&CK techniques mapped\n\n#cve  #critical  #high_severity\n\n\ud83d\udcd6 Full analysis + IOCs \u2192\n\ud83c\udfaf Type /detect cve-2026-42854 in the bot\nOpen Intel Bot \u2192\n\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\n\ud83c\udf10 @shimiscyberworld \u00b7 shimiscyberworld.com", "creation_timestamp": "2026-09-12T10:00:05.514391Z"}