CVE-2014-7169: GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment…
Noroxi assessment
Priority: Now (action score 99/100)
- CISA has confirmed exploitation in the wild (Jan 28, 2022). Remediation deadline for US federal agencies: Jul 28, 2022.
- A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
- Probability of exploitation in the next 30 days: 99.9% (FIRST EPSS); higher than 99.9% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: bash (Debian:12) 4.3-9.2; bash (Debian:6.0) 4.1-3+deb6u2; bash (Debian:7) 4.2+dfsg-0.1+deb7u3.
Patch today or shut off access. Upgrade to bash (Debian:12) 4.3-9.2; bash (Debian:6.0) 4.1-3+deb6u2; bash (Debian:7) 4.2+dfsg-0.1+deb7u3 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.
- Published
- Sep 24, 2014
- Updated
- Jun 16, 2026
- EPSS
- 99.9% · 99th percentile
- CWE
- CWE-78
Report tools
Action score
99
Patch today or shut off access.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 30 / 30 · 99.9%
CISA SSVC decision
- Exploitation
- active
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on Jan 28, 2022. That signals real attacks, not theory.
Remediation deadline for US federal agencies: Jul 28, 2022.
Get told when this record changes
- In CISA KEV: exploitation in the wild confirmed
- Weaponized exploit exists
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| gnu | bash | cpe:2.3:a:gnu:bash |
| arista | eos | cpe:2.3:o:arista:eos |
| oracle | linux | cpe:2.3:o:oracle:linux |
| qnap | qts | cpe:2.3:o:qnap:qts |
| mageia | mageia | cpe:2.3:o:mageia:mageia |
| redhat | gluster storage server for on-premise | cpe:2.3:a:redhat:gluster_storage_server_for_on-premise |
| redhat | virtualization | cpe:2.3:a:redhat:virtualization |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux for ibm z systems | cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems |
| redhat | enterprise linux for power big endian | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian |
and 73 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apple mac os x10.0.0 and later · before 10.10.0
- arista eos4.9.0 and later · before 4.9.12
- arista eos4.13.0 and later · before 4.13.9
- arista eos4.12.0 and later · before 4.12.9
- arista eos4.11.0 and later · before 4.11.11
- arista eos4.10.0 and later · before 4.10.9
- arista eos4.14.0 and later · before 4.14.4f
- canonical ubuntu linux10.04
+12 more rows
- canonical ubuntu linux12.04
- canonical ubuntu linux14.04
- checkpoint security gatewaybefore r77.30
- citrix netscaler sdx firmwarebefore 9.3.67.5r1
- citrix netscaler sdx firmware10 and later · before 10.1.129.11r1
- citrix netscaler sdx firmware10.5 and later · before 10.5.52.11r1
- debian debian linux7.0
- f5 arx firmware6.0.0 and later · up to 6.4.0 inclusive
- f5 big-ip access policy manager11.0.0 and later · up to 11.5.1 inclusive
- f5 big-ip access policy manager10.1.0 and later · up to 10.2.4 inclusive
- f5 big-ip access policy manager11.6.0
- f5 big-ip advanced firewall manager11.3.0 and later · up to 11.5.1 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | bash | before 4.3-9.2 | 4.3-9.2 |
| Debian:6.0 | bash | before 4.1-3+deb6u2 | 4.1-3+deb6u2 |
| Debian:7 | bash | before 4.2+dfsg-0.1+deb7u3 | 4.2+dfsg-0.1+deb7u3 |
| openSUSE:Tumbleweed | bash | before 7.0-92.1 | 7.0-92.1 |
| Red Hat:enterprise_linux:5::client | bash | before 0:3.2-33.el5_11.4 | 0:3.2-33.el5_11.4 |
| Red Hat:enterprise_linux:5::client | bash-debuginfo | before 0:3.2-33.el5_11.4 | 0:3.2-33.el5_11.4 |
| Red Hat:enterprise_linux:6::client | bash | before 0:4.1.2-15.el6_5.2 | 0:4.1.2-15.el6_5.2 |
| Red Hat:enterprise_linux:6::client | bash-debuginfo | before 0:4.1.2-15.el6_5.2 | 0:4.1.2-15.el6_5.2 |
| Red Hat:enterprise_linux:6::client | bash-doc | before 0:4.1.2-15.el6_5.2 | 0:4.1.2-15.el6_5.2 |
| Red Hat:enterprise_linux:7::client | bash | before 0:4.2.45-5.el7_0.4 | 0:4.2.45-5.el7_0.4 |
| Red Hat:enterprise_linux:7::client | bash-debuginfo | before 0:4.2.45-5.el7_0.4 | 0:4.2.45-5.el7_0.4 |
| Red Hat:enterprise_linux:7::client | bash-doc | before 0:4.2.45-5.el7_0.4 | 0:4.2.45-5.el7_0.4 |
| Red Hat:rhel_els:4::as | bash | before 0:3.0-27.el4.4 | 0:3.0-27.el4.4 |
| Red Hat:rhel_els:4::as | bash-debuginfo | before 0:3.0-27.el4.4 | 0:3.0-27.el4.4 |
| Red Hat:rhel_eus:5.9 | bash | before 0:3.2-32.el5_9.3 | 0:3.2-32.el5_9.3 |
| Red Hat:rhel_eus:5.9 | bash-debuginfo | before 0:3.2-32.el5_9.3 | 0:3.2-32.el5_9.3 |
| Red Hat:rhel_eus:6.4::computenode | bash | before 0:4.1.2-15.el6_4.2 | 0:4.1.2-15.el6_4.2 |
| Red Hat:rhel_eus:6.4::computenode | bash-debuginfo | before 0:4.1.2-15.el6_4.2 | 0:4.1.2-15.el6_4.2 |
| Red Hat:rhel_eus:6.4::computenode | bash-doc | before 0:4.1.2-15.el6_4.2 | 0:4.1.2-15.el6_4.2 |
| Red Hat:rhel_mission_critical:5.6 | bash | before 0:3.2-24.el5_6.2 | 0:3.2-24.el5_6.2 |
| Red Hat:rhel_mission_critical:5.6 | bash-debuginfo | before 0:3.2-24.el5_6.2 | 0:3.2-24.el5_6.2 |
| Red Hat:rhel_mission_critical:6.2::server | bash | before 0:4.1.2-9.el6_2.2 | 0:4.1.2-9.el6_2.2 |
| Red Hat:rhel_mission_critical:6.2::server | bash-debuginfo | before 0:4.1.2-9.el6_2.2 | 0:4.1.2-9.el6_2.2 |
| Red Hat:rhel_mission_critical:6.2::server | bash-doc | before 0:4.1.2-9.el6_2.2 | 0:4.1.2-9.el6_2.2 |
+8
Same product
gnu: all recordsOther highest-scoring records for the same primary product.
- CVE-2014-6271GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote…KEV99Now
- CVE-2014-6278GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote…KEV95Now
- CVE-2014-7186The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service…59Plan
Published before and after this one in the same product
- ← EarlierCVE-2010-0002Jan 14, 2010 · The /etc/profile.d/60alias.sh script in the Mandriva bash package for Bash 2.05b, 3.0, 3.2, 3.2.48, and 4.0 enables the…8Monitor
- ← EarlierCVE-2012-3410Aug 27, 2012 · Stack-based buffer overflow in lib/sh/eaccess.c in GNU Bash before 4.2 patch 33 might allow local users to bypass intended restricted shell…18Monitor
- Later →CVE-2014-6277Sep 27, 2014 · GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote…59Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:bash | 4.3-9.2 · Debian:12 | Package registry (OSV) |
| opensuse:bash | 7.0-92.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:bash | 0:3.2-33.el5_11.4 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:bash-debuginfo | 0:3.2-33.el5_11.4 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:bash-doc | 0:4.1.2-15.el6_5.2 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:rhev-hypervisor6 | 0:6.5-20140930.1.el6ev · Red Hat:rhev_manager:3 | Package registry (OSV) |
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Exploit-DB entry ×15
- Nuclei detection template ×1
- Proof-of-concept repository on GitHub ×4
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | 4 repositories | 2014-10-31 → 2026-07-14 |
| Exploit-DB entry | remote | 2014-09-25 |
| Exploit-DB entry | webapps | 2014-10-06 |
| Exploit-DB entry | webapps | 2014-10-01 |
| Exploit-DB entry | remote | 2015-03-26 |
| Exploit-DB entry | remote | 2015-03-26 |
| Exploit-DB entry | remote | 2014-09-25 |
| Exploit-DB entry | remote | 2014-10-29 |
| Exploit-DB entry | remote | 2014-09-29 |
| Exploit-DB entry | remote | 2014-09-25 |
| Exploit-DB entry | remote | 2014-10-02 |
| Exploit-DB entry | remote | 2014-10-04 |
| Exploit-DB entry | remote | 2014-10-06 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoCsame day
- CISA KEV+2682 d
- TodayNov 13, 2026+4433 d
Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.
The bug in code
The whole CWE-78 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const host = req.body.host;
exec("ping -c 1 " + host, onResult);Fixed
const host = req.body.host;
if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);
execFile("ping", ["-c", "1", host], onResult);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Command DelimitersCAPEC-15likelihood: High · High
- Exploiting Multiple Input Interpretation LayersCAPEC-43likelihood: Medium · High
- Argument InjectionCAPEC-6likelihood: High · High
- OS Command InjectionCAPEC-88likelihood: High · High
ATT&CK techniques
—
Change log (1)
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- archives.neohapsis.com/archives/bugtraq/2014-10/0101.html
- jvn.jp/en/jp/JVN55667175/index.html
- jvndb.jvn.jp/jvndb/JVNDB-2014-000126
- lcamtuf.blogspot.com/2014/09/quick-notes-about-bash-bug-its-impact.html
- linux.oracle.com/errata/ELSA-2014-1306.html
- linux.oracle.com/errata/ELSA-2014-3075.html
- linux.oracle.com/errata/ELSA-2014-3077.html
- linux.oracle.com/errata/ELSA-2014-3078.html
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00038.html
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00041.html
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00042.html
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00044.html
- lists.opensuse.org/opensuse-security-announce/2014-09/msg00048.html
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html
- lists.opensuse.org/opensuse-updates/2014-10/msg00023.html
- lists.opensuse.org/opensuse-updates/2014-10/msg00025.html
- marc.info/?l=bugtraq&m=141216207813411&w=2
- marc.info/?l=bugtraq&m=141216668515282&w=2
- marc.info/?l=bugtraq&m=141235957116749&w=2
Vendor advisories and official records. Exploit/PoC links are deliberately left out.