CVE-2025-54883CWE-338

Vision UI's security-kit Contains Cryptographic Weakness

Critical · published August 5, 2025

CVSS v4.0
9.3
EPSS
0%
Percentile
29.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
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
EPSS
0.00371 · 29.9th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2025-08-05T23:36Z
EPSS history
Timeline
  • 05 AUG 23:36Z
    Vision UI's security-kit Contains Cryptographic Weakness
    cvelistv5