# CVE-2025-21079 — Samsung Members

> As of 2026-08-05, CVE-2025-21079 is a HIGH-severity vulnerability in Samsung Members, CVSS v3.1 7.1, EPSS 0.5% (45.2th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-21079, most recently “Samsung Bixby Exploit Chain — System-Level RCE via Samsung Members, Samsung Account, and Capsule Bypass (CVE-2025-21079, CVE-2025-58486, CVE-2025-58487)”.

**Last updated:** 2026-08-05

## What is CVE-2025-21079?

Improper input validation in Samsung Members prior to version 5.5.01.3 allows remote attackers to connect arbitrary URL and launch arbitrary activity with Samsung Members privilege. User interaction is required for triggering this vulnerability.

Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 373 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.1 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H`)
- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 45.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-11-05

## Is CVE-2025-21079 being exploited?

It currently carries a trending score of 16 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Samsung Mobile](https://intel.threadlinqs.com/vendors/samsung-mobile): Samsung Members

## How to fix CVE-2025-21079

No vendor patch reference has been recorded for CVE-2025-21079 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-21079

1 tracked threat in the Threadlinqs corpus references CVE-2025-21079, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Samsung Bixby Exploit Chain — System-Level RCE via Samsung Members, Samsung Account, and Capsule Bypass (CVE-2025-21079, CVE-2025-58486, CVE-2025-58487)](https://intel.threadlinqs.com/threat/TL-2026-1901) — CRITICAL · 2026-08-05

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories.

**Other references**

- [security.samsungmobile.com](https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-21079
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