What is CVE-2021-0551?

CVE-2021-0551 is a medium-severity vulnerability in Google Android, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.5/10. Published 2021-06-22.

How severe is CVE-2021-0551?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Google Android

CVE-2021-0551

In bind of MediaControlPanel.java, there is a possible way to lock up the system UI using a malicious media file due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-180518039

Published 2021-06-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (46.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Google Android — versions 11.0
Android — versions Android-11

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

source.android.com/security/bulletin/pixel/2021-06-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-0551?: CVE-2021-0551 is a medium-severity vulnerability in Google Android, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.5/10. Published 2021-06-22.
How severe is CVE-2021-0551?: Medium severity. CVSS v3 base score is 6.5 out of 10.