# CVE-2025-27611

## Summary

- **CVE ID:** CVE-2025-27611
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-1007
- **Published:** Apr 30, 2025
- **Last Modified:** Mar 13, 2026

## Description

base-x is a base encoder and decoder of any given alphabet using bitcoin style leading zero compression. Versions 4.0.0, 5.0.0, and all prior to 3.0.11, are vulnerable to attackers potentially deceiving users into sending funds to an unintended address. This issue has been patched in versions 3.0.11, 4.0.1, and 5.0.1.

## Affected Products

- cryptocoinjs — base-x (= 5.0.0)
- cryptocoinjs — base-x (= 4.0.0)
- cryptocoinjs — base-x (< 3.0.11)

## References

- [CNA](https://github.com/cryptocoinjs/base-x/security/advisories/GHSA-xq7p-g2vc-g82p)
- [CNA](https://github.com/cryptocoinjs/base-x/pull/86)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 36.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._