What is CVE-2023-21237?

CVE-2023-21237 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 5.5/10. Published 2023-06-28.

How severe is CVE-2023-21237?

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

Is CVE-2023-21237 known to be exploited?

Yes. CVE-2023-21237 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-03-05), indicating it is being actively exploited. 1 public proof-of-concept repositories are indexed.

Information disclosure in Google Android

CVE-2023-21237

In applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or insufficient UI. This could lead to local information disclosure with no additional execution priv…

Vulnerability class: Information Disclosure

EPSS: 0.003 (18.0th 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 13.0
N/a Android — versions Android-13

Weakness classification (CWE)

CWE-200 — Information Disclosure

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2024-03-05. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2024-03-26.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@android.com (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory, US Government Resource)

Frequently asked questions

What is CVE-2023-21237?: CVE-2023-21237 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 5.5/10. Published 2023-06-28.
How severe is CVE-2023-21237?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-21237 known to be exploited?: Yes. CVE-2023-21237 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-03-05), indicating it is being actively exploited. 1 public proof-of-concept repositories are indexed.