CVE-2014-7186

CVE-2014-7186 is a critical-severity vulnerability in Gnu Bash with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 64% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Description

The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via crafted use of here documents, aka the "redir_stack" issue.

Frequently asked questions

What is CVE-2014-7186?
The redirection implementation in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via crafted use of here documents, aka the "redir_stack" issue.
How severe is CVE-2014-7186?
CVE-2014-7186 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2014-7186 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 64% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-7186?
CVE-2014-7186 primarily affects Gnu Bash. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-7186?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2014-7186 published?
CVE-2014-7186 was published on 2014-09-28 and last updated on 2026-06-17.

References

Affected products (28)

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