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No exploitation reportedFix available

CVE-2016-7543

No exploitation reported by the sources we read.

  • Published2017-01-19
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2017-01-1920:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-7543?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-7543?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fedoraproject fedora
BranchAffectedFixed in
23.x= 23no fix published
24.x= 24no fix published
25.x= 25no fix published
Gnu bash
BranchAffectedFixed in
4.3≤ 4.3no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • bashUbuntu:16.04:LTSall versions · fixed in 4.3-14ubuntu1.2
  • bashUbuntu:14.04:LTSall versions · fixed in 4.3-7ubuntu1.7
  • bashSUSE:OpenStack Cloud 7all versions · fixed in 4.3-83.10.1
  • bashSUSE:Linux Enterprise Workstation Extension 12 SP3all versions · fixed in 4.3-83.10.1
  • bashSUSE:Linux Enterprise Workstation Extension 12 SP1all versions · fixed in 4.2-82.1
  • bashSUSE:Linux Enterprise Software Development Kit 12 SP3all versions · fixed in 4.3-83.10.1
  • bashSUSE:Linux Enterprise Software Development Kit 12 SP1all versions · fixed in 4.2-82.1
  • bashSUSE:Linux Enterprise Software Development Kit 11 SP4all versions · fixed in 3.2-147.29.1

25 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.08.4read 2026-10-23
  • NVDCVSS 2.07.2read 2026-10-23
  • NVDweakness (CWE)CWE-20read 2026-10-23
  • FIRST EPSSEPSS score0.6 %2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2017-01-19
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2016-7543?

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

Is CVE-2016-7543 actively exploited?

Active exploitation of CVE-2016-7543 has not been confirmed. Its EPSS score was 0.6% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-7543?

CVE-2016-7543 has a CVSS v3 base score of 8.4 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record