How severe is CVE-2017-17718?

CVE-2017-17718 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-17718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17718?

CVE-2017-17718 primarily affects Net-ldap Project Net-ldap. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-17718?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-17718 published?

CVE-2017-17718 was published on 2017-12-17 and last updated on 2026-06-17.

CVE-2017-17718

CVE-2017-17718 is a medium-severity vulnerability in Net-ldap Project Net-ldap with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Net-ldap Project Net-ldap
Published: 2017-12-17
Last modified: 2026-06-17

Description

The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.

Frequently asked questions

What is CVE-2017-17718?: The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.
How severe is CVE-2017-17718?: CVE-2017-17718 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-17718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17718?: CVE-2017-17718 primarily affects Net-ldap Project Net-ldap. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-17718?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17718 published?: CVE-2017-17718 was published on 2017-12-17 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:a:net-ldap_project:net-ldap:0.0.5:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.1.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.1.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.2:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.2.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.2.2:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.3.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.3.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.5.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.6.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.6.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.7.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.8.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.9.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.10.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.10.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.11:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.12.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.12.1:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.13.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.14.0:*:*:*:*:ruby:*:*
cpe:2.3:a:net-ldap_project:net-ldap:0.15.0:*:*:*:*:ruby:*:*

More vulnerabilities in Net-ldap Project Net-ldap

CVE-2014-0083 — Medium (CVSS 5.5): The Ruby net-ldap gem before 0.11 uses a weak salt when generating SSHA passwords.

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