What is CVE-2023-21239?

CVE-2023-21239 is a medium-severity vulnerability in Google Android, classified under Session Fixation. CVSS score: 5.5/10. Published 2023-07-13.

How severe is CVE-2023-21239?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Google Android

CVE-2023-21239

In visitUris of Notification.java, there is a possible way to leak image data across user boundaries due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

EPSS: 0.001 (0.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 12, 12L, 12.0

Weakness classification (CWE)

CWE-384 — Session Fixation

References

security@android.com (Patch)
security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21239?: CVE-2023-21239 is a medium-severity vulnerability in Google Android, classified under Session Fixation. CVSS score: 5.5/10. Published 2023-07-13.
How severe is CVE-2023-21239?: Medium severity. CVSS v3 base score is 5.5 out of 10.