What is CVE-2017-5206?

CVE-2017-5206 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.0 out of 10. CVE-2017-5206 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-5206?

CVE-2017-5206 has a CVSS score of 9.0 out of 10, rated Critical severity. The vector string is CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Is there a patch available for CVE-2017-5206?

No patch is currently available for CVE-2017-5206. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-5206 actively exploited?

CVE-2017-5206 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-5206

Critical

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.

Package Linux Kernel

Published 2017-03-23

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

9.0

out of 10

Critical

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2017-5206 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/97120

Third Party Advisory VDB Entry
Blog
https://blog.lizzie.io/linux-containers-in-500-loc.html#fn.51

Third Party Advisory
Firejail
https://firejail.wordpress.com/download-2/release-notes/

Release Notes Vendor Advisory
Kernel patch commit
http://www.openwall.com/lists/oss-security/2017/01/07/5
Patch
Kernel patch commit
https://github.com/netblue30/firejail/commit/6b8dba29d73257311564ee7f27b9b14758cc693e
Patch
Kernel patch commit
https://security.gentoo.org/glsa/201701-62
Patch

Details

CVE ID CVE-2017-5206

Severity Critical

CVSS score 9.0 / 10

CVSS version 3.0

Published 2017-03-23

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-5206?

CVE-2017-5206 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.0 out of 10 . CVE-2017-5206 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-5206?

CVE-2017-5206 has a CVSS score of 9.0 out of 10, rated Critical severity (CVSS 3.0). The vector string is CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
Is there a patch available for CVE-2017-5206?

No patch is currently available for CVE-2017-5206. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-5206 actively exploited?

No — CVE-2017-5206 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.