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CVE-2017-5206

30
FAUCET Score

CVE-2017-5206 describes a critical vulnerability in Firejail versions prior to 0.9.44.4, specifically when running on Linux kernels older than 4.8. This flaw allows attackers to bypass seccomp-based sandbox protections by leveraging the --allow-debuggers argument. The vulnerability carries a CVSS v3.0 score of 9.0 (CRITICAL), indicating a network-based attack with high impact on confidentiality, integrity, and availability, albeit with high attack complexity. Its FAUCET Risk Score is 91/100, highlighting its significant danger. While there is no evidence of active exploitation (not in KEV) and no public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered substantial community discussion with 10 mentions, suggesting awareness and potential interest among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.9.44.4CPE matchmatch criteria
cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 75th percentile among its peer group of 200 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.4 Reddit, 1.1 Bluesky, 0.8 Mastodon, and 2.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.8 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gentoopatch availablevia nvd_reference
View patch
github_advisorypatch availablevia nvd_reference
View patch

References

blog.lizzie.io / linux-containers-in-500-loc.html
Third Party Advisory
firejail.wordpress.com / download-2/release-notes
Release NotesVendor Advisory
github.com / netblue30/firejail/commit/6b8dba29d73257311564ee7f27b9b14758cc693e
Issue TrackingPatchThird Party Advisory
security.gentoo.org / glsa/201701-62
PatchThird Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2017/01/07/5
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/97120
Third Party AdvisoryVDB Entry