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CVE-2020-17368

25
FAUCET Score

CVE-2020-17368 is a critical command injection vulnerability affecting Firejail versions through 0.9.62, as well as products from Debian, Fedora Project, and OpenSUSE. This flaw, rated 9.8 CVSS (Critical), stems from Firejail's improper handling of shell metacharacters when using the --output or --output-stderr options, allowing an unauthenticated attacker to execute arbitrary commands remotely with high impact on confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.62CPE matchmatch criteria
cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

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
4.10%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0410 is in the 83rd percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-security-announce/2020-08/msg00036.html
Mailing ListThird Party Advisory
github.com / netblue30/firejail
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/08/msg00033.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JFXN3JJG4DIMN4TAHOTKFMS7SGM4EOTR
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/W66IR5YT4KG464SKEMQN2NP2LGATGEGS
security.gentoo.org / glsa/202101-02
Third Party Advisory
debian.org / security/2020/dsa-4742
Third Party Advisory
debian.org / security/2020/dsa-4743
Third Party Advisory