How severe is CVE-2016-3170?

CVE-2016-3170 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2016-3170 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3170?

CVE-2016-3170 primarily affects Drupal. In total, 94 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3170?

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

When was CVE-2016-3170 published?

CVE-2016-3170 was published on 2016-04-12 and last updated on 2026-06-17.

CVE-2016-3170

CVE-2016-3170 is a medium-severity vulnerability in Drupal with a CVSS 3.x base score of 5.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Drupal
Published: 2016-04-12
Last modified: 2026-06-17

Description

The "have you forgotten your password" links in the User module in Drupal 7.x before 7.43 and 8.x before 8.0.4 allow remote attackers to obtain sensitive username information by leveraging a configuration that permits using an email address to login and a module that permits logging in.

Frequently asked questions

What is CVE-2016-3170?: The "have you forgotten your password" links in the User module in Drupal 7.x before 7.43 and 8.x before 8.0.4 allow remote attackers to obtain sensitive username information by leveraging a configuration that permits using an email address to login and a module that permits logging in.
How severe is CVE-2016-3170?: CVE-2016-3170 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2016-3170 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3170?: CVE-2016-3170 primarily affects Drupal. In total, 94 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3170?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-3170 published?: CVE-2016-3170 was published on 2016-04-12 and last updated on 2026-06-17.

References

Affected products (94)

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:alpha7:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:beta1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:beta2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:beta3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:dev:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:rc1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:rc2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:rc3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.0:rc4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.1:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.2:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.3:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.4:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.5:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.6:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.7:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.8:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.9:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.10:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.11:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.12:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.13:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.14:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.15:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.16:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.17:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.18:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.19:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.20:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.21:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:7.22:*:*:*:*:*:*:*

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