What is CVE-2023-21391?

CVE-2023-21391 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-10-30.

How severe is CVE-2023-21391?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-21391 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Google Android

CVE-2023-21391

In Messaging, there is a possible way to disable the messaging application due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (34.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Google Android — versions 14

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@android.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21391?: CVE-2023-21391 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-10-30.
How severe is CVE-2023-21391?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-21391 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.