Is CVE-2023-21237 being actively exploited?

Yes. CVE-2023-21237 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on March 5, 2024.

What is the CVSS score for CVE-2023-21237?

CVE-2023-21237 has a CVSS 3.1 base score of 5.5 (MEDIUM).

CVE-2023-21237

MEDIUM · CVSS 5.5CISA KEV: actively exploitedEPSS 0.3%EU EUVD: exploited

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

Key facts

CVSS score: 5.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 0.3% (17th percentile)
In CISA KEV: Yes, added March 5, 2024
In EU EUVD: Yes (EUVD-2023-25405)
Published: June 28, 2023
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Android Pixel Information Disclosure Vulnerability

Added to the KEV catalog on March 5, 2024; federal remediation due March 26, 2024.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-25405 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.

View on the EU Vulnerability Database

Affected products

google / android

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Google Pixel Devices on Android 13 - Google LLC - Common Criteria CCEVS-VR-11317-2023 - archived

References

https://source.android.com/security/bulletin/pixel/2023-06-01(Vendor Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21237(Third Party Advisory, US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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