What is CVE-2023-48426?

CVE-2023-48426 is a critical-severity vulnerability in Google Chromecast, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2024-04-05.

How severe is CVE-2023-48426?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Auth bypass in Google Chromecast

CVE-2023-48426

u-boot bug that allows for u-boot shell and interrupt over UART

Vulnerability class: Broken Authentication

Published 2024-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (13.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Chromecast — versions 5.0
Google Chromecast Firmware — versions 5.0
Google Chromecast Ga00439
Google Chromecast Ga3a00403a14
Google Chromecast H2g2-42
Google Chromecast Nc2-645b
Google Chromecast Nc2-6a5
Google Chromecast Nc2-6a5-D
Google Chromecast Rux-J42

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

source.android.com/docs/security/bulletin/chromecast/2023-12-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-48426?: CVE-2023-48426 is a critical-severity vulnerability in Google Chromecast, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2024-04-05.
How severe is CVE-2023-48426?: Critical severity. CVSS v3 base score is 10.0 out of 10.