An issue was discovered in the Espressif ESP32 mask ROM code 2016-06-08 0 through 2.
Priority LOW 21CWE-755Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00235 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:espressif:esp32-d0wd_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | espressif |
| cpe:2.3:h:espressif:esp32-d0wd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | espressif |
| cpe:2.3:o:espressif:esp32-d2wd_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | espressif |
| cpe:2.3:h:espressif:esp32-d2wd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | espressif |
| cpe:2.3:o:espressif:esp32-s0wd_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | espressif |
| cpe:2.3:h:espressif:esp32-s0wd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | espressif |
| cpe:2.3:o:espressif:esp32-pico-d4_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | espressif |
| cpe:2.3:h:espressif:esp32-pico-d4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | espressif |
- cpe:2.3:o:espressif:esp32-d0wd_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·espressif
- cpe:2.3:h:espressif:esp32-d0wd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·espressif
- cpe:2.3:o:espressif:esp32-d2wd_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·espressif
- cpe:2.3:h:espressif:esp32-d2wd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·espressif
- cpe:2.3:o:espressif:esp32-s0wd_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·espressif
- cpe:2.3:h:espressif:esp32-s0wd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·espressif
- cpe:2.3:o:espressif:esp32-pico-d4_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·espressif
- cpe:2.3:h:espressif:esp32-pico-d4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·espressif
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-17391
- 2026-10-03 Alias added: GHSA-6fg6-6393-xqhq
References
Sources
- CVE-2019-17391 · CVE Program
- CVE-2019-17391 · NVD
- FIRST EPSS
- GHSA-6fg6-6393-xqhq · GitHub Advisory Database · CC BY 4.0
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