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CVE-2016-3170

19
FAUCET Score

CVE-2016-3170 is a medium-severity information disclosure vulnerability affecting Drupal 7.x before 7.43 and 8.x before 8.0.4, including Debian distributions. It allows remote attackers to enumerate valid usernames through the "have you forgotten your password" functionality when email login is enabled. The attack requires no user interaction and has a low impact on confidentiality, with no integrity or availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha1:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 69th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: drupal/coreFixed in: 7.43
composerpatch availablevia ghsa
Product: drupal/coreFixed in: 8.0.4
composerpatch availablevia ghsa
Product: drupal/drupalFixed in: 8.0.4
composerpatch availablevia ghsa
Product: drupal/drupalFixed in: 7.43

Vendor Advisories (1)

composerGHSA-pqv4-xgqh-j8vhmedium

Drupal sensitive information disclosure

May 17, 2022

References

drupal.org / SA-CORE-2016-001
PatchVendor Advisory
debian.org / security/2016/dsa-3498
openwall.com / lists/oss-security/2016/02/24/19
openwall.com / lists/oss-security/2016/03/15/10