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CVE-2017-5946

32
FAUCET Score

CVE-2017-5946 is a critical directory traversal vulnerability in the Zip::File component of the rubyzip gem, affecting versions prior to 1.2.1. This flaw allows an unauthenticated attacker to upload a specially crafted .zip file containing "../" sequences to write arbitrary files to the filesystem, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical severity (CVSS 9.8), there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.1CPE matchmatch criteria
cpe:2.3:a:rubyzip_project:rubyzip:*:*:*:*:*:ruby:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.47%
Probability of exploitation in next 30 days
EPSS Percentile
87.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0347 is in the 80th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

rubygemspatch availablevia ghsa
Product: rubyzipFixed in: 1.2.1
redhatvendor investigatingvia redhat_api
Product: Red Hat Quickstart Cloud Installer 1Fixed in: tfm-rubygem-rubyzip

Vendor Advisories (2)

rubygemsGHSA-gcqq-w6gr-h9j9critical

Directory traversal vulnerability in RubyZip

Oct 24, 2017
redhatCVE-2017-5946Moderate

rubygem-rubyzip: Directory traversal in the Zip::File component

Feb 4, 2017

References

github.com / rubyzip/rubyzip/issues/315
Third Party Advisory
github.com / rubyzip/rubyzip/releases
Third Party Advisory
debian.org / security/2017/dsa-3801
Third Party Advisory
securityfocus.com / bid/96445
Third Party AdvisoryVDB Entry