{"api_version":"1","generated_at":"2026-07-11T08:29:26+00:00","cve":"CVE-2026-55687","urls":{"html":"https://cve.report/CVE-2026-55687","api":"https://cve.report/api/cve/CVE-2026-55687.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-55687","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55687"},"summary":{"title":"ESF-IDF: Stack-Based Out-of-Bounds Write in JPEG Decoder DQT Marker Parsing","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. Versions 6.0.1, 5.5.4, 5.4.4, 5.3.5, and possibly prior contain an out-of-bounds write in jpeg_parse_dqt_marker() in components/esp_driver_jpeg/jpeg_parse_marker.c because the attacker-controlled DQT marker Tq nibble is used as an index into the qt_tbl array without validating that it is in the range 0..3, allowing malformed JPEG input to corrupt stack memory and reliably trigger a denial of service. 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