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PatchSiren cyber security CVE debrief

CVE-2014-6278 GNU CVE debrief

CISA lists CVE-2014-6278 as a GNU Bash OS command injection vulnerability and includes it in the Known Exploited Vulnerabilities catalog. That means defenders should treat it as actively abused in the wild and prioritize remediation for any system that uses GNU Bash directly or embeds it through downstream products.

Vendor
GNU
Product
GNU Bash
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2025-10-02
Original CVE updated
2025-10-02
Advisory published
2025-10-02
Advisory updated
2025-10-02

Who should care

Security teams, Linux and Unix administrators, cloud operators, and vendors that ship GNU Bash or bundle it into appliances, libraries, or proprietary products.

Technical summary

The supplied official records identify CVE-2014-6278 as an OS command injection vulnerability in GNU Bash. CISA’s KEV entry marks it as known exploited and notes that the issue may affect open-source components, third-party libraries, protocols, or proprietary implementations used in different products. Because Bash is commonly embedded, exposure may exist beyond a single direct installation.

Defensive priority

Urgent

Recommended defensive actions

  • Apply mitigations per vendor instructions as referenced by CISA and the vendor advisories linked from the KEV entry.
  • Inventory systems, images, appliances, and applications that include GNU Bash or bundle it as a dependency.
  • Patch or update affected deployments as soon as a vendor fix is available.
  • If mitigations are unavailable, discontinue use of the affected product or component.
  • For cloud services, follow applicable CISA BOD 22-01 guidance.
  • Validate that downstream and embedded products have also been updated, not just standalone Bash installations.

Evidence notes

This debrief is based on the supplied CISA KEV source item and the linked official records only. The KEV metadata identifies GNU Bash as the affected product, labels the issue as known exploited, and provides the remediation guidance and due date. No CVSS score was supplied in the corpus, so severity is prioritized from KEV status and remediation guidance rather than a numeric score.

Official resources

CISA added CVE-2014-6278 to the Known Exploited Vulnerabilities catalog on 2025-10-02 and listed remediation as due by 2025-10-23 in the supplied metadata.