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CVE-2016-6515

7.5
HIGHCVSS v3.1 Base Score
77.09%
HIGH RiskEPSS (99th percentile)

The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.

Published: 8/7/2016
Modified: 4/12/2025
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Vulnerability Summary

CVSS v3 Score

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score (Exploitation Probability)

77.09%HIGH Exploitation Risk
99th percentile

This vulnerability has a 77.09% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.

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