Firejail before 0.9.44.4, when running on a Linux kernel before 4.8, allows…
Priority MEDIUM 43Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Firejail before 0.9.44.4, when running on a Linux kernel before 4.8, allows context-dependent attackers to bypass a seccomp-based sandbox protection mechanism via the --allow-debuggers argument.
Why it matters now
EPSS 0.01937 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:* | before 0.9.44.4 | Vulnerable | Firejail Project |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.8 | Running on | Linux |
- cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:* Versions before 0.9.44.4 Vulnerable ·Firejail Project
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.8 Running on ·Linux
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5206
- 2026-10-03 Alias added: GHSA-cj78-6w9j-286h
References
More Firejail Project Firejail vulnerabilities
- TI-2020-13142 Firejail through 0.9.62 mishandles shell metacharacters during use of the --output or… CVSS 3.1CRITICAL 9.8
- TI-2019-09401 In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a… CVSS 3.0HIGH 8.8
- TI-2019-09334 Firejail before 0.9.60 allows truncation (resizing to length 0) of the firejail binary on… CVSS 3.0HIGH 8.1
- TI-2017-03296 Firejail before 0.9.44.4 and 0.9.38.x LTS before 0.9.38.8 LTS does not consider the… CVSS 3.0HIGH 8.8
- TI-2017-03858 Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively… CVSS 3.0HIGH 8.8
- TI-2016-07383 Firejail 0.9.38.4 allows local users to execute arbitrary commands outside of the sandbox… CVSS 3.0HIGH 8.8
Sources
- CVE-2017-5206 · CVE Program
- CVE-2017-5206 · NVD
- FIRST EPSS
- GHSA-cj78-6w9j-286h · GitHub Advisory Database · CC BY 4.0
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