--- title: "CVE-2014-6271: GNU Bash through 4.3 processes trailing… | CubePath" description: "GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers…" language: en source: https://cubepath.com/security/cve/CVE-2014-6271 --- # CVE-2014-6271: GNU Bash through 4.3 processes trailing… | CubePath ## Description GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code 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, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix. Official description from the CVE record, published by debian. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-6271) ## Key data ### CVSS 3.1 Critical 9.8 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.99999 (99.99% probability) Percentile 99.99% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability Added to the catalog Jan 28, 2022 Federal due date Jul 28, 2022 ### CISA assessment as of Feb 7, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-78](https://cwe.mitre.org/data/definitions/78.html) Improper Neutralization of Special Elements used in an OS Command ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [37816](https://www.exploit-db.com/exploits/37816/) (exploit-db.com) exploit - [packetstormsecurity.com/files/128517/VMware-Security-Adviso…](http://packetstormsecurity.com/files/128517/VMware-Security-Advisory-2014-0010.html) - [SUSE-SU-2014:1223](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00034.html) (lists.opensuse.org) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=ssg1S1004897](http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004897) - [www-01.ibm.com/support/docview.wss?uid=swg21685749](http://www-01.ibm.com/support/docview.wss?uid=swg21685749) - [HPSBMU03165](http://marc.info/?l=bugtraq&m=141577137423233&w=2) (marc.info) vendor-advisory - [SSRT101816](http://marc.info/?l=bugtraq&m=142719845423222&w=2) (marc.info) vendor-advisory - [39918](https://www.exploit-db.com/exploits/39918/) (exploit-db.com) exploit - [HPSBHF03119](http://marc.info/?l=bugtraq&m=141216668515282&w=2) (marc.info) vendor-advisory - [RHSA-2014:1295](http://rhn.redhat.com/errata/RHSA-2014-1295.html) (rhn.redhat.com) vendor-advisory - [openSUSE-SU-2014:1226](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00037.html) (lists.opensuse.org) vendor-advisory - [securityblog.redhat.com/2014/09/24/bash-specially-crafted-e…](https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/) - [supportcenter.checkpoint.com/supportcenter/portal?eventSubm…](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit%5FdoGoviewsolutiondetails=&solutionid=sk102673&src=securityAlerts) - [HPSBST03131](http://marc.info/?l=bugtraq&m=141383138121313&w=2) (marc.info) vendor-advisory - [SSRT101819](http://marc.info/?l=bugtraq&m=142721162228379&w=2) (marc.info) vendor-advisory - [20141001 NEW VMSA-2014-0010 - VMware product updates address critical Bash security vulnerabilities](http://www.securityfocus.com/archive/1/533593/100/0/threaded) (securityfocus.com) mailing-list - [HPSBMU03245](http://marc.info/?l=bugtraq&m=142358026505815&w=2) (marc.info) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21686084](http://www-01.ibm.com/support/docview.wss?uid=swg21686084) - [www-01.ibm.com/support/docview.wss?uid=swg21686479](http://www-01.ibm.com/support/docview.wss?uid=swg21686479) - [61188](http://secunia.com/advisories/61188) (secunia.com) third-party-advisory - [websense.com/support/article/kbarticle/Vulnerabilities-reso…](http://www.websense.com/support/article/kbarticle/Vulnerabilities-resolved-in-TRITON-APX-Version-8-0) - [JVN#55667175](http://jvn.jp/en/jp/JVN55667175/index.html) (jvn.jp) third-party-advisory - [61676](http://secunia.com/advisories/61676) (secunia.com) third-party-advisory - [40619](https://www.exploit-db.com/exploits/40619/) (exploit-db.com) exploit - [openSUSE-SU-2014:1254](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00044.html) (lists.opensuse.org) vendor-advisory - [60433](http://secunia.com/advisories/60433) (secunia.com) third-party-advisory - [38849](https://www.exploit-db.com/exploits/38849/) (exploit-db.com) exploit - [HPSBMU03143](http://marc.info/?l=bugtraq&m=141383026420882&w=2) (marc.info) vendor-advisory - [HPSBMU03182](http://marc.info/?l=bugtraq&m=141585637922673&w=2) (marc.info) vendor-advisory - [kb.juniper.net/InfoCenter/index?page=content&id=JSA10673](http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673) - [SUSE-SU-2014:1260](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00049.html) (lists.opensuse.org) vendor-advisory - [HPSBST03155](http://marc.info/?l=bugtraq&m=141576728022234&w=2) (marc.info) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21685541](http://www-01.ibm.com/support/docview.wss?uid=swg21685541) - [61715](http://secunia.com/advisories/61715) (secunia.com) third-party-advisory - [oracle.com/technetwork/topics/security/bashcve-2014-7169-23…](http://www.oracle.com/technetwork/topics/security/bashcve-2014-7169-2317675.html) - [61816](http://secunia.com/advisories/61816) (secunia.com) third-party-advisory - [openSUSE-SU-2014:1310](http://lists.opensuse.org/opensuse-updates/2014-10/msg00025.html) (lists.opensuse.org) vendor-advisory - [61442](http://secunia.com/advisories/61442) (secunia.com) third-party-advisory - [HPSBMU03246](http://marc.info/?l=bugtraq&m=142358078406056&w=2) (marc.info) vendor-advisory - [HPSBST03195](http://marc.info/?l=bugtraq&m=142805027510172&w=2) (marc.info) vendor-advisory - [61283](http://secunia.com/advisories/61283) (secunia.com) third-party-advisory - [SSRT101711](http://marc.info/?l=bugtraq&m=142113462216480&w=2) (marc.info) vendor-advisory - [USN-2362-1](http://www.ubuntu.com/usn/USN-2362-1) (ubuntu.com) vendor-advisory - [kc.mcafee.com/corporate/index?page=content&id=SB10085](https://kc.mcafee.com/corporate/index?page=content&id=SB10085) - [openSUSE-SU-2014:1308](http://lists.opensuse.org/opensuse-updates/2014-10/msg00023.html) (lists.opensuse.org) vendor-advisory - [61654](http://secunia.com/advisories/61654) (secunia.com) third-party-advisory - [61542](http://secunia.com/advisories/61542) (secunia.com) third-party-advisory - [novell.com/support/kb/doc.php?id=7015701](http://www.novell.com/support/kb/doc.php?id=7015701) - [www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIG…](http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5096315) - [62312](http://secunia.com/advisories/62312) (secunia.com) third-party-advisory - [59272](http://secunia.com/advisories/59272) (secunia.com) third-party-advisory - [HPSBST03122](http://marc.info/?l=bugtraq&m=141319209015420&w=2) (marc.info) vendor-advisory - [support.f5.com/kb/en-us/solutions/public/15000/600/sol15629…](https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.html) - [HPSBMU03217](http://marc.info/?l=bugtraq&m=141879528318582&w=2) (marc.info) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21685604](http://www-01.ibm.com/support/docview.wss?uid=swg21685604) - [SSRT101868](http://marc.info/?l=bugtraq&m=142118135300698&w=2) (marc.info) vendor-advisory - [61703](http://secunia.com/advisories/61703) (secunia.com) third-party-advisory - [support.apple.com/kb/HT6495](http://support.apple.com/kb/HT6495) - [VU#252743](http://www.kb.cert.org/vuls/id/252743) (kb.cert.org) third-party-advisory - [61065](http://secunia.com/advisories/61065) (secunia.com) third-party-advisory - [SUSE-SU-2014:1213](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00029.html) (lists.opensuse.org) vendor-advisory - [HPSBST03129](http://marc.info/?l=bugtraq&m=141383196021590&w=2) (marc.info) vendor-advisory - [HPSBMU03144](http://marc.info/?l=bugtraq&m=141383081521087&w=2) (marc.info) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21686445](http://www-01.ibm.com/support/docview.wss?uid=swg21686445) - [www-01.ibm.com/support/docview.wss?uid=swg21686131](http://www-01.ibm.com/support/docview.wss?uid=swg21686131) - [70103](http://www.securityfocus.com/bid/70103) (securityfocus.com) vdb-entry - [JVNDB-2014-000126](http://jvndb.jvn.jp/jvndb/JVNDB-2014-000126) (jvndb.jvn.jp) third-party-advisory - [TA14-268A](http://www.us-cert.gov/ncas/alerts/TA14-268A) (us-cert.gov) third-party-advisory - [SUSE-SU-2014:1212](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00028.html) (lists.opensuse.org) vendor-advisory - [61641](http://secunia.com/advisories/61641) (secunia.com) third-party-advisory - [kb.juniper.net/InfoCenter/index?page=content&id=JSA10648](https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10648) - [access.redhat.com/node/1200223](https://access.redhat.com/node/1200223) - [packetstormsecurity.com/files/137376/IPFire-Bash-Environmen…](http://packetstormsecurity.com/files/137376/IPFire-Bash-Environment-Variable-Injection-Shellshock.html) - [SUSE-SU-2014:1287](http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html) (lists.opensuse.org) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=ssg1S1004898](http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004898) - [APPLE-SA-2014-10-16-1](http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html) (archives.neohapsis.com) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21685914](http://www-01.ibm.com/support/docview.wss?uid=swg21685914) - [20141001 FW: NEW VMSA-2014-0010 - VMware product updates address critical Bash security vulnerabilities](http://seclists.org/fulldisclosure/2014/Oct/0) (seclists.org) mailing-list - [MDVSA-2015:164](http://www.mandriva.com/security/advisories?name=MDVSA-2015:164) (mandriva.com) vendor-advisory - [RHSA-2014:1293](http://rhn.redhat.com/errata/RHSA-2014-1293.html) (rhn.redhat.com) vendor-advisory - [support.hpe.com/hpsc/doc/public/display?docLocale=en\_US&doc…](https://support.hpe.com/hpsc/doc/public/display?docLocale=en%5FUS&docId=emr%5Fna-c04497075) - [openSUSE-SU-2014:1238](http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00040.html) (lists.opensuse.org) vendor-advisory - [60325](http://secunia.com/advisories/60325) (secunia.com) third-party-advisory - [help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+…](https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes) - [60024](http://secunia.com/advisories/60024) (secunia.com) third-party-advisory - [packetstormsecurity.com/files/128567/CA-Technologies-GNU-Ba…](http://packetstormsecurity.com/files/128567/CA-Technologies-GNU-Bash-Shellshock.html) - [34879](https://www.exploit-db.com/exploits/34879/) (exploit-db.com) exploit - [access.redhat.com/articles/1200223](https://access.redhat.com/articles/1200223) - [62343](http://secunia.com/advisories/62343) (secunia.com) third-party-advisory - [61565](http://secunia.com/advisories/61565) (secunia.com) third-party-advisory - [suse.com/support/shellshock](https://www.suse.com/support/shellshock/) - [HPSBST03157](http://marc.info/?l=bugtraq&m=141450491804793&w=2) (marc.info) vendor-advisory - [61313](http://secunia.com/advisories/61313) (secunia.com) third-party-advisory - [61873](http://secunia.com/advisories/61873) (secunia.com) third-party-advisory - [61485](http://secunia.com/advisories/61485) (secunia.com) third-party-advisory - [60947](http://secunia.com/advisories/60947) (secunia.com) third-party-advisory - [support.hpe.com/hpsc/doc/public/display?docLocale=en\_US&doc…](https://support.hpe.com/hpsc/doc/public/display?docLocale=en%5FUS&docId=emr%5Fna-c04518183) - [support.apple.com/kb/HT6535](https://support.apple.com/kb/HT6535) - [HPSBST03154](http://marc.info/?l=bugtraq&m=141577297623641&w=2) (marc.info) vendor-advisory - [HPSBST03265](http://marc.info/?l=bugtraq&m=142546741516006&w=2) (marc.info) vendor-advisory and 70 more in the [record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-6271) ## Timeline 1. ID reserved Sep 9, 2014 2. Record published Sep 24, 2014 3. Added to CISA KEV Jan 28, 2022 4. Record last updated Oct 22, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:00 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)