# CVE-2025-54883

## Summary

- **CVE ID:** CVE-2025-54883
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N)
- **CWE:** CWE-338
- **Published:** Aug 5, 2025
- **Last Modified:** Mar 12, 2026

## Description

Vision UI is a collection of enterprise-grade, dependency-free modules for modern web projects. In versions 1.4.0 and below, the getSecureRandomInt function in security-kit versions prior to 3.5.0 (packaged in Vision-ui <= 1.4.0) contains a critical cryptographic weakness. Due to a silent 32-bit integer overflow in its internal masking logic, the function fails to produce a uniform distribution of random numbers when the requested range between min and max is larger than 2³². The root cause is the use of a 32-bit bitwise left-shift operation (<<) to generate a bitmask for the rejection sampling algorithm. This causes the mask to be incorrect for any range requiring 32 or more bits of entropy. This issue is fixed in version 1.5.0.

## Affected Products

- DavidOsipov — Vision-ui (< 1.5.0)

## References

- [CNA](https://github.com/DavidOsipov/Vision-ui/security/advisories/GHSA-c9xg-x7h3-mq2q)
- [CNA](https://github.com/DavidOsipov/Vision-ui/commit/347355859f05e98047efbd96fc0e61b9191324f1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._