CVE-2026-41858CWE-338

Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to…

Medium · published June 4, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
34.8
In the wild
Unconfirmed
What it is

Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to estimate VM boot time and reconstruct a small candidate list to recover the Administrator password. The randomize_password job exists solely to lock the local Administrator account behind an unguessable password as a hardening control. Because the password is derived from a predictable, clock-seeded PRNG, a network attacker who can estimate VM boot time can reconstruct a small candidate list and recover the Administrator password, defeating the hardening control.

Affected versions:

- windows-utilities-release: all versions prior to v0.23.0 (inclusive); fixed in v0.23.0 or later

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00416 · 34.8th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2026-06-04T02:10Z
EPSS history
Timeline
  • 04 JUN 02:10Z
    Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to…
    cvelistv5