Vulnerability Details : CVE-2023-35818
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.
Vulnerability category: Bypass
Products affected by CVE-2023-35818
- cpe:2.3:o:espressif:esp32-pico-d4_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-d4_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-d0wd-v3_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-d0wd-v3_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-d0wdr2-v3_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-d0wdr2-v3_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-u4wdh_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-u4wdh_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-02_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-02_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-32e_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-32e_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-32ue_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-32ue_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-da_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wroom-da_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wrover-e_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wrover-e_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wrover-ie_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-wrover-ie_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-mini-1_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-mini-1_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-mini-1u_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-mini-1u_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-mini-02_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-mini-02_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-mini-02u_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-mini-02u_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-zero_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-zero_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-devkitc_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-devkitc_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-devkitm-1_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-devkitm-1_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-kit_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-kit_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-zero-devkit_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-pico-v3-zero-devkit_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp-eye_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp-eye_firmware:3.1:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-vaquita-dspg_firmware:3.0:*:*:*:*:*:*:*
- cpe:2.3:o:espressif:esp32-vaquita-dspg_firmware:3.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-35818
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-35818
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
0.9
|
5.9
|
NIST |
References for CVE-2023-35818
-
https://espressif.com
Wi-Fi & Bluetooth MCUs and AIoT Solutions I Espressif SystemsProduct
-
https://www.espressif.com/sites/default/files/advisory_downloads/AR2023-005%20Security%20Advisory%20Concerning%20Bypassing%20Secure%20Boot%20and%20Flash%20Encryption%20Using%20EMFI%20EN.pdf
Vendor Advisory
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