Security Feature Bypass in Samsung Galaxy S25 (CVE‑2025‑21079) Allows Remote Exploitation via Samsung Members
What It Is – A moderate‑severity (CVSS 5.4) vulnerability in the Samsung Members app on the Galaxy S25 permits an unauthenticated remote attacker to bypass a built‑in security feature and launch a malicious WebView with a custom URL.
Exploitability – The flaw is network‑reachable (AV:N) and requires no authentication (PR:N). A proof‑of‑concept was demonstrated at the Pwn2Own competition; no public exploit‑as‑a‑service has been observed yet.
Affected Products – Samsung Galaxy S25 smartphones; the vulnerable component is the pre‑installed Samsung Members application.
TPRM Impact – Enterprises that provision Samsung Galaxy S25 devices to employees face a supply‑chain risk: a compromised device could be used to pivot into corporate networks, exfiltrate data, or bypass mobile‑device‑management (MDM) controls.
Recommended Actions –
- Deploy Samsung’s security patch (released Nov 2025) to all Galaxy S25 units immediately.
- Enforce MDM policies that restrict or sandbox WebView usage and block the Samsung Members app until the patch is verified.
- Monitor network traffic for anomalous outbound WebView requests to non‑standard URLs.
- Conduct a rapid inventory of all Samsung Galaxy S25 devices in the organization and verify patch compliance.