CVE-2026-47831

Cryptographically Weak Password Generation in bosh-windows-stemcell-builder Allows Remote SSH Brute-Force Attacks

State: Published
Severity: 7.7 High
Published: Jul 9, 2026
Updated: Jul 9, 2026
Reserved: May 20, 2026

Description

Use of a cryptographically weak random number generator in the GenerateRandomPassword function in bosh-windows-stemcell-builder allows a remote attacker to brute-force the resulting SSH login via TCP/22. Affected versions: bosh-windows-stemcell-builder versions prior to v2019.98.

Scores

CVSS	Score	Vector	Source
4.0	7.7 High	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	vmware
3.0	7.5 High	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	vmware

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
bosh-windows-stemcell-builderCloud Foundry Foundation	before 2019.98Affected

References

https://www.cloudfoundry.org/blog/cve-2026-47831-cryptographically-weak-password-generation-in-bosh-windows-stemcell-builder-allows-remote-ssh-brute-force-attacks/

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