What is CVE-2026-20484?

CVE-2026-20484 is a medium-severity vulnerability in Mediatek Mt6739 Firmware, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 4.4/10. Published 2026-08-03.

How severe is CVE-2026-20484?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Mediatek Mt6739 Firmware

CVE-2026-20484

In TFA, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11053160; Issue ID: MSV-8004.

EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20484?: CVE-2026-20484 is a medium-severity vulnerability in Mediatek Mt6739 Firmware, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 4.4/10. Published 2026-08-03.
How severe is CVE-2026-20484?: Medium severity. CVSS v3 base score is 4.4 out of 10.