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cpe:2.3:a:espressif:arduino-esp32:*:-:*:*:*:*:*:*

part: a version: * update: -

VendorEspressif (df5bdb83-6e76-51c7-9f3a-58b3951d8668)
ProductArduino Esp32 (dd9ea030-f26b-5c66-bb5d-dbaf21784554)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from gcve-enriched-dumps CVE data

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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2026-42855 vulnerable 2026-06-08 08:03:16.820206 arduino-esp32: Digest authentication URI mismatch bypass in WebServer allows cross-resource replay attack
HIGH (7.5)
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 Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from the client's Authorization header, without verifying that it matches the actual requested URI. This allows an attacker who possesses any valid digest response (computed for URI-A) to authenticate requests to a completely different protected URI (URI-B), bypassing per-resource access control. This vulnerability is fixed in 3.3.8.
Published: 2026-05-12T21:56:08.490Z
Updated: 2026-05-13T15:36:54.428Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2026-42854 vulnerable 2026-06-08 08:03:16.819824 arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE
CRITICAL (9.8)
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 parser in arduino-esp32 allocates a Variable Length Array (VLA) on the stack whose size is derived from an attacker-controlled HTTP header field (Content-Type: multipart/form-data; boundary=...) without enforcing any length limit. Sending a boundary string longer than ~8000 characters overflows the 8192-byte task stack of the loopTask, causing a crash and potential remote code execution. This vulnerability is fixed in 3.3.8.
Published: 2026-05-12T21:56:33.437Z
Updated: 2026-05-13T14:24:52.597Z
Reference links
Imported from gcve-enriched-dumps CVE data

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