Is CVE-2017-7551 in the CISA KEV catalog?

No. CVE-2017-7551 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-7551?

CVE-2017-7551 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-7551?

CVE-2017-7551 has an EPSS score of 1.42% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-7551?

Upgrade 389-ds-base on debian 11 to 1.3.6.7-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-7551

CRITICAL

9.8

CVSS v3

NVD

Description

389-ds-base version before 1.3.5.19 and 1.3.6.7 are vulnerable to password brute-force attacks during account lockout due to different return codes returned on password attempts.

CWE-209 CWE-640

How to fix

Remediation Available

389-ds-baseDebian

Fixed in:1.3.6.7-1CVE-2017-7551

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.42%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

pagure.io

Other references1

access.redhat.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.