What is CVE-2025-20638?

CVE-2025-20638 is a medium-severity vulnerability in Google Android, classified under CWE-457. CVSS score: 4.3/10. Published 2025-02-03.

How severe is CVE-2025-20638?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Google Android

CVE-2025-20638

In DA, there is a possible read of uninitialized heap data due to uninitialized data. This could lead to local information disclosure, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS09291449; Issue ID: MSV-2066.

Published 2025-02-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Google Android — versions 12.0, 13.0, 14.0
Mediatek Mt6739
Mediatek Mt6761
Mediatek Mt6765
Mediatek Mt6768
Mediatek Mt6771
Mediatek Mt6779
Mediatek Mt6781
Mediatek Mt6785
Mediatek Mt6833

Weakness classification (CWE)

References

corp.mediatek.com/product-security-bulletin/February-2025 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20638?: CVE-2025-20638 is a medium-severity vulnerability in Google Android, classified under CWE-457. CVSS score: 4.3/10. Published 2025-02-03.
How severe is CVE-2025-20638?: Medium severity. CVSS v3 base score is 4.3 out of 10.