What is CVE-2017-7551?

CVE-2017-7551 is a critical-severity vulnerability in 389 Directory Server 389-Ds-Base, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 9.8/10. Published 2017-08-16.

How severe is CVE-2017-7551?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Information disclosure in 389 Directory Server 389-Ds-Base

CVE-2017-7551

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.

Published 2017-08-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (72.4th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

389 Directory Server 389-Ds-Base — versions before 1.3.5.19 and 1.3.6.7
Fedoraproject 389 Directory Server — versions 1.3.5.19, 1.3.6.7

Weakness classification (CWE)

References

access.redhat.com/errata/RHSA-2017:2569 (vendor-advisory)
pagure.io/389-ds-base/issue/49336 (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2017-7551?: CVE-2017-7551 is a critical-severity vulnerability in 389 Directory Server 389-Ds-Base, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 9.8/10. Published 2017-08-16.
How severe is CVE-2017-7551?: Critical severity. CVSS v3 base score is 9.8 out of 10.