CVE-2019-17391

MEDIUM
4.6
CVSS Score
Published: November 14, 2019 at 08:34 PM UTC
Updated: June 17, 2026 at 02:23 AM UTC
8 products affected across 1 vendorEsp32-pico D4 FirmwareEsp32-s0wd FirmwareEsp32-d0wd Firmware

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%

Description

An issue was discovered in the Espressif ESP32 mask ROM code 2016-06-08 0 through 2. Lack of anti-glitch mitigations in the first stage bootloader of the ESP32 chip allows an attacker (with physical access to the device) to read the contents of read-protected eFuses, such as flash encryption and secure boot keys, by injecting a glitch into the power supply of the chip shortly after reset.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
espressif-esp32-d0wd (same device)
All versions
espressif-esp32-d2wd (same device)
All versions
espressif-esp32-pico-d4 (same device)
All versions
espressif-esp32-s0wd (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755

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