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CVE-2019-9924

20
FAUCET Score

CVE-2019-9924 describes a vulnerability in rbash (restricted Bash) versions prior to 4.4-beta2, allowing a local attacker to bypass restrictions by modifying the BASH_CMDS environment variable. This enables the execution of arbitrary commands with the privileges of the shell user. Rated 7.8 HIGH on CVSS, it poses a significant risk due to its local attack vector and high impact on confidentiality, integrity, and availability. Currently, there is no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4CPE matchmatch criteria
cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:a:gnu:bash:4.4:beta1:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
42.3CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
34.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 74th percentile among its peer group of 17,070 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, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

Patch Available

Vendor Patches (11)

redhatpatch availablevia redhat_api
Product: Red Hat Ansible Tower 3.5 for RHEL 7Fixed in: ansible-tower-35/ansible-tower:3.5.6-1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Tower 3.6 for RHEL 7Fixed in: ansible-tower-36/ansible-tower:3.6.4-1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bash-0:4.2.46-34.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: bash-0:4.2.46-30.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: bash-0:4.2.46-30.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: bash-0:4.2.46-30.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: bash-0:4.2.46-32.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.7 Extended Update SupportFixed in: bash-0:4.2.46-34.el7_7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bash
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: redhat-virtualization-host
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rhvm-appliance

Vendor Advisories (1)

redhatCVE-2019-9924Moderate

bash: BASH_CMD is writable in restricted bash shells

Mar 7, 2019

References

git.savannah.gnu.org / cgit/bash.git/tree/CHANGES
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2019-04/msg00049.html
Mailing ListThird Party Advisory
bugs.launchpad.net / ubuntu/+source/bash/+bug/1803441
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2019/03/msg00028.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20190411-0001
Third Party Advisory
usn.ubuntu.com / 4058-1
Third Party Advisory
usn.ubuntu.com / 4058-2
Third Party Advisory