What’s Vulnerable › Vulnerabilities

CVE-2016-7543

• Severity: high (CVSS 8.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-19 · updated 2026-06-17
• Weakness: CWE-20

Description

Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.

Affected products

• Fedoraproject Fedora: 23, 24, 25
• GNU Bash: through 4.3

References

• http://rhn.redhat.com/errata/RHSA-2017-0725.html
• http://www.openwall.com/lists/oss-security/2016/09/26/9
• http://www.securityfocus.com/bid/93183
• http://www.securitytracker.com/id/1037812
• https://access.redhat.com/errata/RHSA-2017:1931
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05388115
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7XOQSHU63Y357NHU5FPTFBM6I3YOCQB/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU3C756YPHDAAPFX76UGZBAQQQ5UMHS5/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2VRBSIPZDZ75ZQ2DLITHUIDW4W26KVR/
• https://lists.gnu.org/archive/html/bug-bash/2016-09/msg00018.html
• https://security.gentoo.org/glsa/201701-02
• http://rhn.redhat.com/errata/RHSA-2017-0725.html

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