What is CVE-2026-59603?

CVE-2026-59603 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.5/10. Published 2026-11-10.

How severe is CVE-2026-59603?

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

Use After Free in Google Android

CVE-2026-59603

In RespondReceivedMessage of MtsMessageController.cpp, there is a possible way to trigger a double free and process abort during message retry handling due to a use after free. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Use-After-Free

Published 2026-11-10 · last modified 2026-11-11.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Google Android — versions Android kernel

Weakness classification (CWE)

CWE-416 — Use After Free

References

source.android.com/docs/security/bulletin/pixel/2026/2026-11-01

Frequently asked questions

What is CVE-2026-59603?: CVE-2026-59603 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.5/10. Published 2026-11-10.
How severe is CVE-2026-59603?: High severity. CVSS v3 base score is 7.5 out of 10.