# CVE-2021-25374: Missing authorization in Samsung Members

> Remote attackers can access user data linked to Samsung Accounts via improper authorization in the Samsung Members app deeplink scheme.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-m8xj-8969-xvhx

## What is CVE-2021-25374?

CVE-2021-25374 is a high-severity missing authorization vulnerability in Samsung Members, published on 9 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An improper authorization vulnerability in Samsung Members "samsungrewards" scheme for deeplink in versions 2.4.83.9 in Android O(8.1) and below, and 3.9.00.9 in Android P(9.0) and above allows remote attackers to access a user data related with Samsung Account.

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2021-25374?

It affects 1 product.


Products: Samsung Members.

## How do I fix CVE-2021-25374?

No fix has been published for CVE-2021-25374 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25374 being exploited?

There is no known exploitation of CVE-2021-25374 in the wild and no public exploit code.

Public exploit code:

- This script can be used to gain access to a victim's Samsung Account if they have a specific version of Samsung Members installed on their Samsung Device, and if the victim's device is from the US or Korea region. (github_poc): https://github.com/ReversecLabs/CVE-2021-25374_Samsung-Account-Access

## Other vulnerabilities in Samsung Members

- [CVE-2021-25438](https://insights.sbomify.com/CVE-2021-25438/): Path traversal in Samsung Members (high 7.8)
- [CVE-2025-21079](https://insights.sbomify.com/CVE-2025-21079/): Open redirect in Samsung Members (high 7.1)
- [CVE-2026-20985](https://insights.sbomify.com/CVE-2026-20985/): Open redirect in Samsung Members (high 7.0)
- [CVE-2026-21037](https://insights.sbomify.com/CVE-2026-21037/): Missing authorization in Samsung Members (medium 6.9)
- [CVE-2026-20986](https://insights.sbomify.com/CVE-2026-20986/): Path traversal in Chinese Samsung Members (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25374 and fix it if it is affected.

What it is: CVE-2021-25374 is a high-severity missing authorization vulnerability in Samsung Members, published on 9 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-25374 in the wild and no public exploit code.

Affected product: Samsung Members. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-25374/ (Markdown: https://insights.sbomify.com/CVE-2021-25374/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25374
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25374
- OSV: https://osv.dev/vulnerability/CVE-2021-25374

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25374/
Summaries are generated and may contain mistakes; the official description above is the record.