Background exploitation KEV catalog

CVE-2023-21237

Android Pixel Information Disclosure Vulnerability

CheckOps priority index

3.7/10 Patch within 7 days

Severity6.2

Probability0.0

Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 0.27% higher than 18.5% of CVEs

CVSS 3.1 6.2 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 973 days 05 Mar 2024

CISA due date 26 Mar 2024 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

KEV catalog (CISA)05 Mar 2024
Exploited in EUVD (ENISA)05 Mar 2024
Used by ransomwareno
EPSS above 10 %0.27%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

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

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

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

Affected products

AndroidPixel

Affected versions

Android-13

Weaknesses (CWE)

CWE-200

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

28 Jun 2023
Published
05 Mar 2024
Exploitation reported (ENISA)
05 Mar 2024
Added to the KEV catalog
26 Mar 2024
CISA remediation due date

References

Other exploited vulnerabilities from the same vendor

CVE-2025-48595Android Framework Integer Overflow Vulnerability
4.6 · Actively exploited
CVE-2025-48633Android Framework Information Disclosure Vulnerability
3.4 · Background exploitation
CVE-2025-48572Android Framework Privilege Escalation Vulnerability
4.3 · Background exploitation
CVE-2025-48543Android Runtime Use-After-Free Vulnerability
4.7 · Background exploitation
CVE-2024-43093Android Framework Privilege Escalation Vulnerability
4.1 · Background exploitation
CVE-2024-36971Android Kernel Remote Code Execution Vulnerability
4.4 · Background exploitation