# Bash vulnerabilities > Bash is made by Gnu. We track 18 published vulnerabilities in it, across 39 versions. 3 of them are on the list of flaws known to be exploited, the newest added on 2 October 2025. If you run Bash, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/gnu/bash ## At a glance - **Made by:** [Gnu](https://www.precursorintelligence.com/vendors/gnu) - **Published vulnerabilities:** 18 - **Known to be exploited:** 3 - **Versions tracked:** 39 - **Most recently added to the known-exploited list:** [CVE-2014-6278](https://www.precursorintelligence.com/what-is/cve-2014-6278), 2 October 2025. We keep watching the list. ## Which versions of Bash do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. - [CVE-2014-6278](https://www.precursorintelligence.com/what-is/cve-2014-6278) (GNU Bash OS Command Injection Vulnerability): 1.14.0, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6, 1.14.7, 2.0, 2.01, 2.01.1, 2.02, 2.02.1, 2.03, 2.04, 2.05-a, 2.05-b, 2.05, 3.0, 3.0.16, 3.1, 3.2, 3.2.48, 4.0-rc1, 4.0, 4.1, 4.2, 4.3 - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271) (GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability): up to 4.3 - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169) (GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability): up to 4.3 ## Which Bash vulnerabilities are being exploited? 3 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2014-6278](https://www.precursorintelligence.com/what-is/cve-2014-6278): GNU Bash OS Command Injection Vulnerability. High, CVSS 8.8, chance of use in 30 days >99%, known exploited since 2 October 2025. - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 28 January 2022. - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 28 January 2022. ## Which Bash flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271): >99%, Critical (CVSS 9.8), known exploited - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169): >99%, Critical (CVSS 9.8), known exploited - [CVE-2014-6278](https://www.precursorintelligence.com/what-is/cve-2014-6278): >99%, High (CVSS 8.8), known exploited - [CVE-2014-7186](https://www.precursorintelligence.com/what-is/cve-2014-7186): 64%, Critical (CVSS 10.0) - [CVE-2014-6277](https://www.precursorintelligence.com/what-is/cve-2014-6277): 64%, Critical (CVSS 10.0) - [CVE-2014-7187](https://www.precursorintelligence.com/what-is/cve-2014-7187): 58%, Critical (CVSS 10.0) - [CVE-2016-0634](https://www.precursorintelligence.com/what-is/cve-2016-0634): 6.0%, High (CVSS 7.5) - [CVE-2019-18276](https://www.precursorintelligence.com/what-is/cve-2019-18276): 2.6%, High (CVSS 7.8) - [CVE-1999-0491](https://www.precursorintelligence.com/what-is/cve-1999-0491): 0.9%, Medium (CVSS 4.6) - [CVE-2010-0002](https://www.precursorintelligence.com/what-is/cve-2010-0002): 0.7%, Low (CVSS 2.1) ## Questions ### How many vulnerabilities does Bash have? We track 18 published vulnerabilities listed under the name Bash, across 39 versions. The most recent Bash flaw added to the known-exploited list is CVE-2014-6278, on 2 October 2025. ### Which Bash vulnerabilities are being exploited? 3 are on the list of flaws known to be exploited. The most recently added are CVE-2014-6278, CVE-2014-6271 and CVE-2014-7169. ### Which versions of Bash do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2014-6278, affects 1.14.0, 1.14.1, 1.14.2, 1.14.3 and more. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Bash? Create a Precursor Intelligence account and track Bash. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Bash? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact