How severe is CVE-2023-21237?

CVE-2023-21237 has a CVSS 3.1 base score of 6.2 (MEDIUM). EPSS estimates a 0.3% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-21237: Android Pixel Information Disclosure Vulnerability

CISA Known Exploited Vulnerabilities

Android Pixel Information Disclosure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-03-05

Remediation due

2024-03-26

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

CISA notes
https://source.android.com/docs/security/bulletin/pixel/2023-06-01; https://nvd.nist.gov/vuln/detail/CVE-2023-21237

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

Severity

CVSS 3.1 · CISA6.2 MEDIUM

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Exploitation Context

as of October 15, 2026

All KEV statistics→

CISA added CVE-2023-21237 to the KEV catalog 251 days after its CVE record was published. The median for entries added in 2024 is 21.5 days.
It is one of 17 Android entries in the CISA KEV catalog, and one of 6 added in 2024.

Affected Products

Vendor	Product	Affected versions
-	Android	Android-13

References

1 Links

Other references

https://source.android.com/security/bulletin/pixel/2023-06-01

Record Details

Published

2023-06-28

Last updated

2025-10-21

Assigner (CNA)

google_android

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.