CVE-2026-41858: cloud foundry foundation windows-utilities-release

Vulnerability summary

CVE-2026-41858 is a high (CVSS 7.5) vulnerability in cloud foundry foundation windows-utilities-release. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.4% of scored vulnerabilities.

Timeline

1. 04-06-2026
   PublishedVulnerability first disclosed.
2. 04-06-2026
   Last modifiedVulnerability information updated.

Description

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

• CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.