CVE-2023-21237

MEDIUM5.5

CISA KEV

Published 2023-06-28 · Updated 2026-06-17 · Source security@android.com

Summary

CVE-2023-21237 is a medium-severity (CVSS 5.5) vulnerability in Android Pixel. CISA added it to the Known Exploited Vulnerabilities catalog on March 5, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 26, 2024. CISA does not currently list it as used in ransomware campaigns. Android has 17 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 17 known-exploited Android vulnerabilities →

Description

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 privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251586912

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE-200

CISA Known-Exploited Vulnerability

Product: Android — Pixel

Name: Android Pixel Information Disclosure Vulnerability

Date added: 2024-03-05 · Due: 2024-03-26

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

References

View on NVD

More exploited Android vulnerabilities

Most recently added to CISA KEV

CVE-2025-48595
Framework — Android Framework Integer Overflow Vulnerability
added 2026-06-02
CVE-2025-48633
Framework — Android Framework Information Disclosure Vulnerability
added 2025-12-02
CVE-2025-48572
Framework — Android Framework Privilege Escalation Vulnerability
added 2025-12-02
CVE-2025-48543
Runtime — Android Runtime Use-After-Free Vulnerability
added 2025-09-04
CVE-2024-43093
Framework — Android Framework Privilege Escalation Vulnerability
added 2024-11-07
CVE-2024-36971
Kernel — Android Kernel Remote Code Execution Vulnerability
added 2024-08-07

View all →

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