Bash before 4.4 allows local users to execute arbitrary commands with root privileges via…
Priority LOW 37CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 16 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.
Why it matters now
EPSS 0.00576 47th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 16 fixed, 1 without a fix
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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:* | up to 4.3 | Vulnerable | GNU |
| cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | 23 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* | 24 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* | 25 | Vulnerable | Fedoraproject |
- cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:* Versions up to 4.3 Vulnerable ·GNU
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* Versions 25 Vulnerable ·Fedoraproject
Remediation
Red Hat 2 advisories
- RHSA-2017:1931 Released 2017-08-01 · Red Hat rating Moderatebash security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) bash-4.2.46-28.el7
- Red Hat Enterprise Linux Client Optional (v. 7) bash-doc-4.2.46-28.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) bash-4.2.46-28.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) bash-doc-4.2.46-28.el7
- Red Hat Enterprise Linux Server (v. 7) bash-4.2.46-28.el7
- Red Hat Enterprise Linux Server Optional (v. 7) bash-doc-4.2.46-28.el7
- Red Hat Enterprise Linux Workstation (v. 7) bash-4.2.46-28.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) bash-doc-4.2.46-28.el7
- RHSA-2017:0725 Released 2017-03-21 · Red Hat rating Moderatebash security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) bash-4.1.2-48.el6
- Red Hat Enterprise Linux Desktop Optional (v. 6) bash-doc-4.1.2-48.el6
- Red Hat Enterprise Linux HPC Node (v. 6) bash-4.1.2-48.el6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) bash-doc-4.1.2-48.el6
- Red Hat Enterprise Linux Server (v. 6) bash-4.1.2-48.el6
- Red Hat Enterprise Linux Server Optional (v. 6) bash-doc-4.1.2-48.el6
- Red Hat Enterprise Linux Workstation (v. 6) bash-4.1.2-48.el6
- Red Hat Enterprise Linux Workstation Optional (v. 6) bash-doc-4.1.2-48.el6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1931 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:0725 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1931 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-7543
- 2026-10-03 Alias added: GHSA-6xh6-xvh9-w4h5
References
Advisory 7
Sources
- CVE-2016-7543 · CVE Program
- CVE-2016-7543 · NVD
- FIRST EPSS
- GHSA-6xh6-xvh9-w4h5 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-7543 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences