What the history shows
Bash has a recorded history of 18 CVEs, including 3 entries in the KEV list, reaching a maximum CVSS score of 10.0, with the latest CVE reported on 2023-01-05.
How to stay safe
Operators should maintain supported release lines and track deployed versions closely to ensure critical updates are applied.
Check your version
bash --versionAffected version lines
Known vulnerabilities
| CVE | Title | Affected versions | CVSS | Exploited | EPSS | Published |
|---|---|---|---|---|---|---|
| CVE-2014-6278 | GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment vari... | = 1.14.0 = 1.14.1 = 1.14.2 | 8.8 | KEV | 99.7% | 2014-09-30 |
| CVE-2014-7169 | GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the... | ≤ 4.3 | 9.8 | KEV | 99.9% | 2014-09-25 |
| CVE-2014-6271 | GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variab... | ≤ 4.3 | 9.8 | KEV | 100.0% | 2014-09-24 |
| CVE-2022-3715 | A flaw was found in the bash package, where a heap-buffer overflow can occur in valid parameter_transform. Thi... | ≥ 5.1 < 5.1.8 | 7.8 | — | 2023-01-05 | |
| CVE-2019-18276 | An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash... | ≤ 5.0 = 5.0 | 7.8 | — | 2019-11-28 | |
| CVE-2012-6711 | A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current... | ≥ 4.2 ≤ 4.3 | 7.8 | — | 2019-06-18 | |
| CVE-2019-9924 | rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user... | < 4.4 = 4.4 | 7.8 | — | 2019-03-22 | |
| CVE-2016-0634 | The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary... | = 4.3 | 7.5 | — | 2017-08-28 | |
| CVE-2017-5932 | The path autocompletion feature in Bash 4.4 allows local users to gain privileges via a crafted filename start... | = 4.4 | 7.8 | — | 2017-03-27 | |
| CVE-2016-9401 | popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted a... | < 4.4 = 4.4 | 5.5 | — | 2017-01-23 | |
| CVE-2016-7543 | Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS an... | ≤ 4.3 | 8.4 | — | 2017-01-19 | |
| CVE-2014-7186 | The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause... | = 1.14.0 = 1.14.1 = 1.14.2 | 10.0 | — | 2014-09-28 | |
| 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 a... | = 1.14.0 = 1.14.1 = 1.14.2 | 10.0 | — | 2014-09-28 | |
| CVE-2014-6277 | GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment vari... | = 1.14.0 = 1.14.1 = 1.14.2 | 10.0 | — | 2014-09-27 | |
| CVE-2012-3410 | Stack-based buffer overflow in lib/sh/eaccess.c in GNU Bash before 4.2 patch 33 might allow local users to byp... | = 4.2 | 4.6 | — | 2012-08-27 | |
| CVE-2010-0002 | 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 en... | = 2.05 = 3.0 = 3.2 | 2.1 | — | 2010-01-14 | |
| CVE-1999-0491 | The prompt parsing in bash allows a local user to execute commands as another user by creating a directory wit... | ≤ 2.04 = 1.14.0 = 1.14.1 | 4.6 | — | 1999-04-20 | |
| CVE-1999-1383 | (1) bash before 1.14.7, and (2) tcsh 6.05 allow local users to gain privileges via directory names that contai... | ≤ 1.14.6 = 1.14.0 = 1.14.1 | 4.6 | — | 1996-09-13 |
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Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).