Cryptographically Weak Password Generation in bosh-windows-stemcell-builder Allows Remote SSH Brute-Force Attacks
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00319 25th percentileScored 2026-11-07
Fix Fixed bosh-windows-stemcell-builder (Cloud Foundry Foundation): 2019.98
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cloud Foundry Foundation | bosh-windows-stemcell-builder | before 2019.98 | 2019.98 | Patch available | CNA |
- bosh-windows-stemcell-builder VendorCloud Foundry Foundation Affected before 2019.98 Fixed in 2019.98 Patch available CNA
Remediation
- Fix · CNA bosh-windows-stemcell-builder (Cloud Foundry Foundation) Fixed in 2019.98
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Cloud Foundry Foundation bosh-windows-stemcell-builder 2019.98
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-35283 Incorrect Permission Assignment Allows Local Privilege Escalation to SYSTEM via Executable OverwritePriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47831
- 2026-10-03 Alias added: GHSA-4qp9-f9vm-49xq
More Cloud Foundry Foundation vulnerabilities
- TI-2026-29616 Information disclosure in Cloud Foundry Foundation uaa_release CVSS 4.0CRITICAL 10.0
- TI-2026-35291 Federated OIDC Users Can Bypass externalGroupsWhitelist to Gain uaa.admin CVSS 4.0CRITICAL 9.2
- TI-2026-29615 Improper authentication in Cloud Foundry Foundation log-cache_release CVSS 3.1HIGH 7.5
- TI-2026-35283 Incorrect Permission Assignment Allows Local Privilege Escalation to SYSTEM via Executable Overwrite CVSS 4.0HIGH 8.5
- TI-2026-35280 CVE-2026-47827 – BOSH CLI Powershell Injection CVSS 3.1HIGH 7.5
- TI-2026-29662 OS command injection in Cloud Foundry Foundation BOSH CVSS 4.0HIGH 8.7
Sources
- CVE-2026-47831 · CVE Program
- CVE-2026-47831 · NVD
- FIRST EPSS
- GHSA-4qp9-f9vm-49xq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences