CVE-2017-5206
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.0 CRITICALCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 1.94% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- firejail project/firejail
- Source
- cve@mitre.org
EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2017/01/07/5Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/97120Third Party Advisory, VDB Entry
- https://blog.lizzie.io/linux-containers-in-500-loc.html#fn.51Third Party Advisory
- https://firejail.wordpress.com/download-2/release-notes/Release Notes, Vendor Advisory
- https://github.com/netblue30/firejail/commit/6b8dba29d73257311564ee7f27b9b14758cc693eIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201701-62Patch, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2017/01/07/5Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/97120Third Party Advisory, VDB Entry
- https://blog.lizzie.io/linux-containers-in-500-loc.html#fn.51Third Party Advisory
- https://firejail.wordpress.com/download-2/release-notes/Release Notes, Vendor Advisory
- https://github.com/netblue30/firejail/commit/6b8dba29d73257311564ee7f27b9b14758cc693eIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201701-62Patch, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.