What is CVE-2025-20743?

CVE-2025-20743 is a medium-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 4.2/10. Published 2025-11-04.

How severe is CVE-2025-20743?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Use After Free in Google Android

CVE-2025-20743

In clkdbg, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation…

Vulnerability class: Use-After-Free

EPSS: 0.001 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Google Android — versions 14.0, 15.0, 16.0
Mediatek Mt2718
Mediatek Mt6761
Mediatek Mt6765
Mediatek Mt6768
Mediatek Mt6781
Mediatek Mt6853
Mediatek Mt6877
Mediatek Mt6886
Mediatek Mt6893

Weakness classification (CWE)

CWE-416 — Use After Free

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20743?: CVE-2025-20743 is a medium-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 4.2/10. Published 2025-11-04.
How severe is CVE-2025-20743?: Medium severity. CVSS v3 base score is 4.2 out of 10.