What is CVE-2026-28666?

CVE-2026-28666 is a high-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-09-08.

How severe is CVE-2026-28666?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Google Android

CVE-2026-28666

In multiple functions of LocalImageResolver.java, there is a possible Remote Persistent Denial of Service due to a DNG image rendering check bypass. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Broken Access Control

Published 2026-09-08 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.7th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Google Android — versions 17.0, 15.0, 14.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

source.android.com/docs/security/bulletin/2026/2026-09-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-28666?: CVE-2026-28666 is a high-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-28666?: High severity. CVSS v3 base score is 8.8 out of 10.