CVE-2026-47831
HIGHCryptographically Weak Password Generation in bosh-windows-stemcell-builder Allows Remote SSH Brute-Force Attacks
CVSS v3
7.5
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical Details
- CVSS v3 Vector
- 3.0
- Published
- 7/9/2026
- Last Modified
- 7/9/2026
Frequently Asked Questions
What is CVE-2026-47831?
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.
Is CVE-2026-47831 actively exploited?
Active exploitation of CVE-2026-47831 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-47831?
CVE-2026-47831 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.0.
Is CVE-2026-47831 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.