What is CVE-2026-20976?

CVE-2026-20976 is a high-severity vulnerability in Samsung Galaxy Store, classified under CWE-20: IMPROPER INPUT VALIDATION. CVSS score: 7.8/10. Published 2026-01-09.

How severe is CVE-2026-20976?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Samsung Galaxy Store

CVE-2026-20976

Improper input validation in Galaxy Store prior to version 4.6.02 allows local attacker to execute arbitrary script.

Published 2026-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Samsung Galaxy Store
Samsung Mobile Galaxy Store — versions 4.6.02

References

security.samsungmobile.com/serviceWeb.smsb (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20976?: CVE-2026-20976 is a high-severity vulnerability in Samsung Galaxy Store, classified under CWE-20: IMPROPER INPUT VALIDATION. CVSS score: 7.8/10. Published 2026-01-09.
How severe is CVE-2026-20976?: High severity. CVSS v3 base score is 7.8 out of 10.