Filtered by vendor Espressif
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Total
32 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2025-52471 | 1 Espressif | 1 Esp-idf | 2026-01-22 | N/A | 9.8 CRITICAL |
| ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. An integer underflow vulnerability has been identified in the ESP-NOW protocol implementation within the ESP Wi-Fi component of versions 5.4.1, 5.3.3, 5.2.5, and 5.1.6 of the ESP-IDF framework. This issue stems from insufficient validation of user-supplied data length in the packet receive function. Under certain conditions, this may lead to out-of-bounds memory access and may allow arbitrary memory write operations. On systems without a memory protection scheme, this behavior could potentially be used to achieve remote code execution (RCE) on the target device. In versions 5.4.2, 5.3.4, 5.2.6, and 5.1.6, ESP-NOW has added more comprehensive validation logic on user-supplied data length during packet reception to prevent integer underflow caused by negative value calculations. For ESP-IDF v5.3 and earlier, a workaround can be applied by validating that the `data_len` parameter received in the RX callback (registered via `esp_now_register_recv_cb()`) is a positive value before further processing. For ESP-IDF v5.4 and later, no application-level workaround is available. Users are advised to upgrade to a patched version of ESP-IDF to take advantage of the built-in mitigation. | |||||
| CVE-2025-55297 | 1 Espressif | 1 Esp-idf | 2026-01-22 | N/A | 8.8 HIGH |
| ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. The BluFi example bundled in ESP-IDF was vulnerable to memory overflows in two areas: Wi-Fi credential handling and Diffie–Hellman key exchange. This vulnerability is fixed in 5.4.1, 5.3.3, 5.1.6, and 5.0.9. | |||||
| CVE-2025-68473 | 1 Espressif | 1 Esp-idf | 2026-01-22 | N/A | 8.6 HIGH |
| ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the ESP-IDF Bluetooth host stack (BlueDroid), the function bta_dm_sdp_result() used a fixed-size array uuid_list[32][MAX_UUID_SIZE] to store discovered service UUIDs during the SDP (Service Discovery Protocol) process. On modern Bluetooth devices, it is possible for the number of available services to exceed this fixed limit (32). In such cases, if more than 32 services are discovered, subsequent writes to uuid_list could exceed the bounds of the array, resulting in a potential out-of-bounds write condition. | |||||
| CVE-2025-68474 | 1 Espressif | 1 Esp-idf | 2026-01-22 | N/A | 7.6 HIGH |
| ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the avrc_vendor_msg() function of the ESP-IDF BlueDroid AVRCP stack, the allocated buffer size was validated using AVRC_MIN_CMD_LEN (20 bytes). However, the actual fixed header data written before the vendor payload exceeds this value. This totals 29 bytes written before p_msg->p_vendor_data is copied. Using the old AVRC_MIN_CMD_LEN could allow an out-of-bounds write if vendor_len approaches the buffer limit. For commands where vendor_len is large, the original buffer allocation may be insufficient, causing writes beyond the allocated memory. This can lead to memory corruption, crashes, or other undefined behavior. The overflow could be larger when assertions are disabled. | |||||
| CVE-2025-68622 | 1 Espressif | 1 Usb Host Uvc Class Driver | 2026-01-22 | N/A | 6.8 MEDIUM |
| Espressif ESP-IDF USB Host UVC Class Driver allows video streaming from USB cameras. Prior to 2.4.0, a vulnerability in the esp-usb UVC host implementation allows a malicious USB Video Class (UVC) device to trigger a stack buffer overflow during configuration-descriptor parsing. When UVC configuration-descriptor printing is enabled, the host prints detailed descriptor information provided by the connected USB device. A specially crafted UVC descriptor may advertise an excessively large length. Because this value is not validated before being copied into a fixed-size stack buffer, an attacker can overflow the buffer and corrupt memory. This vulnerability is fixed in 2.4.0. | |||||
| CVE-2025-68656 | 1 Espressif | 1 Usb Host Hid Driver | 2026-01-22 | N/A | 6.8 MEDIUM |
| Espressif ESP-IDF USB Host HID (Human Interface Device) Driver allows access to HID devices. Prior to 1.1.0, usb_class_request_get_descriptor() frees and reallocates hid_device->ctrl_xfer when an oversized descriptor is requested but continues to use the stale local pointer, leading to an immediate use-after-free when processing attacker-controlled Report Descriptor lengths. This vulnerability is fixed in 1.1.0. | |||||
| CVE-2025-68657 | 1 Espressif | 1 Usb Host Hid Driver | 2026-01-22 | N/A | 6.4 MEDIUM |
| Espressif ESP-IDF USB Host HID (Human Interface Device) Driver allows access to HID devices. Prior to 1.1.0, calls to hid_host_device_close() can free the same usb_transfer_t twice. The USB event callback and user code share the hid_iface_t state without locking, so both can tear down a READY interface simultaneously, corrupting heap metadata inside the ESP USB host stack. This vulnerability is fixed in 1.1.0. | |||||
| CVE-2024-51428 | 1 Espressif | 1 Esp-idf | 2026-01-14 | N/A | 7.5 HIGH |
| An issue in Espressif Esp idf v5.3.0 allows attackers to cause a Denial of Service (DoS) via a crafted data channel packet. | |||||
| CVE-2024-33453 | 1 Espressif | 1 Esp-idf | 2025-12-31 | N/A | 8.1 HIGH |
| Buffer Overflow vulnerability in esp-idf v.5.1 allows a remote attacker to obtain sensitive information via the externalId component. | |||||
| CVE-2024-33454 | 1 Espressif | 1 Esp-idf | 2025-12-31 | N/A | 6.5 MEDIUM |
| Buffer Overflow vulnerability in esp-idf v.5.1 allows a remote attacker to execute arbitrary code via a crafted script to the Bluetooth stack component. | |||||
| CVE-2024-53406 | 1 Espressif | 1 Esp-idf | 2025-12-31 | N/A | 8.8 HIGH |
| Espressif Esp idf v5.3.0 is vulnerable to Insecure Permissions resulting in Authentication bypass. In the reconnection phase, the device reuses the session key from a previous connection session, creating an opportunity for attackers to execute security bypass attacks. | |||||
| CVE-2024-28183 | 1 Espressif | 1 Esp-idf | 2025-12-05 | N/A | 6.1 MEDIUM |
| ESP-IDF is the development framework for Espressif SoCs supported on Windows, Linux and macOS. A Time-of-Check to Time-of-Use (TOCTOU) vulnerability was discovered in the implementation of the ESP-IDF bootloader which could allow an attacker with physical access to flash of the device to bypass anti-rollback protection. Anti-rollback prevents rollback to application with security version lower than one programmed in eFuse of chip. This attack can allow to boot past (passive) application partition having lower security version of the same device even in the presence of the flash encryption scheme. The attack requires carefully modifying the flash contents after the anti-rollback checks have been performed by the bootloader (before loading the application). The vulnerability is fixed in 4.4.7 and 5.2.1. | |||||
| CVE-2025-27840 | 1 Espressif | 2 Esp32, Esp32 Firmware | 2025-03-12 | N/A | 6.8 MEDIUM |
| Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 (Write memory). | |||||
| CVE-2023-46894 | 1 Espressif | 1 Esptool | 2024-11-21 | N/A | 7.5 HIGH |
| An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm. | |||||
| CVE-2023-35818 | 1 Espressif | 44 Esp-eye, Esp-eye Firmware, Esp32-d0wd-v3 and 41 more | 2024-11-21 | N/A | 6.8 MEDIUM |
| An issue was discovered on Espressif ESP32 3.0 (ESP32_rev300 ROM) devices. An EMFI attack on ECO3 provides the attacker with a capability to influence the PC value at the CPU context level, regardless of Secure Boot and Flash Encryption status. By using this capability, the attacker can exploit another behavior in the chip to gain unauthorized access to the ROM download mode. Access to ROM download mode may be further exploited to read the encrypted flash content in cleartext format or execute stub code. | |||||
| CVE-2022-24893 | 1 Espressif | 1 Esp-idf | 2024-11-21 | 8.3 HIGH | 7.5 HIGH |
| ESP-IDF is the official development framework for Espressif SoCs. In Espressif’s Bluetooth Mesh SDK (`ESP-BLE-MESH`), a memory corruption vulnerability can be triggered during provisioning, because there is no check for the `SegN` field of the Transaction Start PDU. This can result in memory corruption related attacks and potentially attacker gaining control of the entire system. Patch commits are available on the 4.1, 4.2, 4.3 and 4.4 branches and users are recommended to upgrade. The upgrade is applicable for all applications and users of `ESP-BLE-MESH` component from `ESP-IDF`. As it is implemented in the Bluetooth Mesh stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware. | |||||
| CVE-2021-41104 | 2 Esphome, Espressif | 3 Esphome Firmware, Esp32, Esp8266 | 2024-11-21 | 4.3 MEDIUM | 7.5 HIGH |
| ESPHome is a system to control the ESP8266/ESP32. Anyone with web_server enabled and HTTP basic auth configured on version 2021.9.1 or older is vulnerable to an issue in which `web_server` allows over-the-air (OTA) updates without checking user defined basic auth username & password. This issue is patched in version 2021.9.2. As a workaround, one may disable or remove `web_server`. | |||||
| CVE-2021-34173 | 1 Espressif | 2 Esp32, Esp32 Firmware | 2024-11-21 | 7.8 HIGH | 7.5 HIGH |
| An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover. | |||||
| CVE-2021-28139 | 1 Espressif | 2 Esp-idf, Esp32 | 2024-11-21 | 8.3 HIGH | 8.8 HIGH |
| The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly restrict the Feature Page upon reception of an LMP Feature Response Extended packet, allowing attackers in radio range to trigger arbitrary code execution in ESP32 via a crafted Extended Features bitfield payload. | |||||
| CVE-2021-28136 | 1 Espressif | 2 Esp-idf, Esp32 | 2024-11-21 | 3.3 LOW | 6.5 MEDIUM |
| The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of multiple LMP IO Capability Request packets during the pairing process, allowing attackers in radio range to trigger memory corruption (and consequently a crash) in ESP32 via a replayed (duplicated) LMP packet. | |||||