What is CVE-2021-0321?

CVE-2021-0321 is a medium-severity vulnerability in Google Android, classified under Observable Discrepancy. CVSS score: 5.5/10. Published 2021-01-11.

How severe is CVE-2021-0321?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-0321 known to be exploited?

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

Vulnerability in Google Android

CVE-2021-0321

In enforceDumpPermissionForPackage of ActivityManagerService.java, there is a possible way to determine if a package is installed due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11; Android ID: A-166667403.

EPSS: 0.002 (4.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 11.0
N/a Android — versions Android-11

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

Public proof-of-concept exploits

TinyNiko/android_

References

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

Frequently asked questions

What is CVE-2021-0321?: CVE-2021-0321 is a medium-severity vulnerability in Google Android, classified under Observable Discrepancy. CVSS score: 5.5/10. Published 2021-01-11.
How severe is CVE-2021-0321?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-0321 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.