Advisory Details

March 16th, 2026

(Pwn2Own) Samsung Galaxy S25 Samsung Members Security Feature Bypass Vulnerability

CVE ID	CVE-2025-21079
CVSS SCORE	5.4, AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
AFFECTED VENDORS	Samsung
AFFECTED PRODUCTS	Galaxy S25
VULNERABILITY DETAILS	This vulnerability allows remote attackers to bypass a security feature on affected installations of Samsung Galaxy S25. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Samsung Members application. The issue results from the exposure of a resource to the wrong control sphere. An attacker can leverage this vulnerability to open a WebView with a custom URL, leading to further compromise.
ADDITIONAL DETAILS	Samsung has issued an update to correct this vulnerability. More details can be found at: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11
DISCLOSURE TIMELINE	2025-11-18 - Vulnerability reported to vendor 2026-03-16 - Coordinated public release of advisory 2026-03-16 - Advisory Updated
CREDIT	Ken Gannon / 伊藤剣 (@yogehi) of Mobile Hacking Lab, and Dimitrios Valsamaras (@Ch0pin)

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