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TI-2025-34617 Aliases CVE-2025-54883

Vision UI's security-kit Contains Cryptographic Weakness

Priority MEDIUM 48CWE-338Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00423 36th percentileScored 2026-11-07
Fix Fixed Vision-ui (DavidOsipov): 1.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DavidOsipovVision-uibefore 1.5.01.5.0Patch availableCNA
  • Vision-ui VendorDavidOsipov Affected before 1.5.0 Fixed in 1.5.0 Patch available CNA

Remediation

  • Fix · CNA Vision-ui (DavidOsipov) Fixed in 1.5.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-54883

References

Other 2

  • TI-2025-34618 Vision UI security-kit.js: Potential Uncontrolled Resource Allocation Vulnerability CVSS 4.0HIGH 8.7
  • TI-2025-21191 Post-Quantum Secure Feldman's Verifiable Secret Sharing has Timing Side-Channels in Matrix Operations CVSS 4.0MEDIUM 5.8
  • TI-2025-21190 Post-Quantum Secure Feldman's Verifiable Secret Sharing has Inadequate Fault Injection… CVSS 4.0MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences