What is CVE-2021-0341?

CVE-2021-0341 is a high-severity vulnerability in Google Android, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2021-02-10.

How severe is CVE-2021-0341?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-0341 known to be exploited?

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

Vulnerability in Google Android

CVE-2021-0341

In verifyHostName of OkHostnameVerifier.java, there is a possible way to accept a certificate for the wrong domain due to improperly used crypto. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-171980069

Vulnerability class: Improper Certificate Validation

EPSS: 0.009 (55.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 8.1, 9.0, 10.0
N/a Android — versions Android-8.1 Android-9 Android-10 Android-11

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0341?: CVE-2021-0341 is a high-severity vulnerability in Google Android, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2021-02-10.
How severe is CVE-2021-0341?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-0341 known to be exploited?: 24 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.