CVE-2014-7187: Off-by-one error in the read_token_word function in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of…
Noroxi assessment
Priority: Plan (action score 58/100)
- Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 58.4% (FIRST EPSS); higher than 99.1% of all records.
- No special conditions are required; it is repeatable.
- 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.
Add it to your regular patch cycle. 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 · FIRST EPSS
Off-by-one error in the read_token_word function in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via deeply nested for loops, aka the "word_lineno" issue.
- Published
- Sep 28, 2014
- Updated
- Jun 16, 2026
- EPSS
- 58.4% · 99th percentile
- CWE
- CWE-119
Report tools
Action score
58
Add it to your regular patch cycle.
- CVSS
- 40 / 40 · 10.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 18 / 30 · 58.4%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- 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 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- gnu bash1.14.0
- gnu bash1.14.1
- gnu bash1.14.2
- gnu bash1.14.3
- gnu bash1.14.4
- gnu bash1.14.5
- gnu bash1.14.6
- gnu bash1.14.7
+12 more rows
- gnu bash2.0
- gnu bash2.01
- gnu bash2.01.1
- gnu bash2.02
- gnu bash2.02.1
- gnu bash2.03
- gnu bash2.04
- gnu bash2.05
- gnu bash3.0
- gnu bash3.0.16
- gnu bash3.1
- gnu bash3.2
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-2014-7169GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment…KEV99Now
- 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
Published before and after this one in the same product
- ← EarlierCVE-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
- ← EarlierCVE-2014-7186Sep 28, 2014 · The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service…59Plan
- Later →CVE-2016-7543Jan 19, 2017 · Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.33Monitor
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
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×2
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 |
|---|---|---|
| Exploit-DB entry | remote | 2014-09-29 |
| Exploit-DB entry | remote | 2014-10-02 |
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
- TodayNov 13, 2026+4429 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd-primary
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)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: 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
- jvndb.jvn.jp/jvndb/JVNDB-2014-000126
- lists.apple.com/archives/security-announce/2015/Jan/msg00003.html
- lists.apple.com/archives/security-announce/2015/Sep/msg00008.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-updates/2014-10/msg00023.html
- lists.opensuse.org/opensuse-updates/2014-10/msg00025.html
- marc.info/?l=bugtraq&m=141330468527613&w=2
- marc.info/?l=bugtraq&m=141345648114150&w=2
- marc.info/?l=bugtraq&m=141383026420882&w=2
- marc.info/?l=bugtraq&m=141383081521087&w=2
- marc.info/?l=bugtraq&m=141383138121313&w=2
- marc.info/?l=bugtraq&m=141383196021590&w=2
- marc.info/?l=bugtraq&m=141383244821813&w=2
- marc.info/?l=bugtraq&m=141383304022067&w=2
- marc.info/?l=bugtraq&m=141450491804793&w=2
Vendor advisories and official records. Exploit/PoC links are deliberately left out.