What is CVE-2026-0073?

CVE-2026-0073 is a high-severity vulnerability in Google Android, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 8.8/10. Published 2026-05-04.

How severe is CVE-2026-0073?

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

Is CVE-2026-0073 known to be exploited?

21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2026-0073

In adbd_tls_verify_cert of auth.cpp, there is a possible bypass of wireless ADB mutual authentication due to a logic error in the code. This could lead to remote (proximal/adjacent) code execution as the shell user with no additional execution privileges needed. User interaction is not needed for exploitation.

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

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.005 (43.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Android — versions 15.0, 14.0, 15

Weakness classification (CWE)

CWE-303 — Incorrect Implementation of Authentication Algorithm

Public proof-of-concept exploits

References

source.android.com/docs/security/bulletin/2026/2026-05-01 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-0073?: CVE-2026-0073 is a high-severity vulnerability in Google Android, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 8.8/10. Published 2026-05-04.
How severe is CVE-2026-0073?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2026-0073 known to be exploited?: 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.