CVE-2014-6278

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-10-02), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 8.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary commands via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271, CVE-2014-7169, and CVE-2014-6277.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
100%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

September 30, 2014

Last Modified

April 22, 2026

Advisory Details (5)

Auto-updated May 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

'[security bulletin] HPSBHF03125 rev.1 - HP Next Generation Firewall (NGFW) running Bash Shell, Remot' - MARC

http://marc.info/?l=bugtraq&m=141345648114150&w=2
generic

'[security bulletin] HPSBGN03138 rev.1 - HP Operations Analytics running Bash Shell, Remote Code Exec' - MARC

http://marc.info/?l=bugtraq&m=141330468527613&w=2
generic🟡 PoC Available

lcamtuf's old blog: Bash bug: the other two RCEs, or how we chipped away at the original fix (CVE-2014-6277 and '78)

http://lcamtuf.blogspot.com/2014/10/bash-bug-how-we-finally-cracked.html
generic

lcamtuf's old blog: Bash bug: apply Florian's patch now (CVE-2014-6277 and CVE-2014-6278)

http://lcamtuf.blogspot.com/2014/09/bash-bug-apply-unofficial-patch-now.html
generic

JVN#55667175: QNAP QTS vulnerable to OS command injection

http://jvn.jp/en/jp/JVN55667175/index.html

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntubash-static (4.3-7ubuntu1.5) @ trusty2026-09-19ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
bash—4.3-9.2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
bash—4.3-9.2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
bash—4.3-9.2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
bash—4.3-9.2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 92× in last 7d / 349× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 1,290 total refreshes for this CVE.

  1. 2026-09-19 16:21 UTCVendor advisory
  2. 2026-09-19 16:21 UTCGHSA enrichment
  3. 2026-09-19 12:28 UTCVendor advisory
  4. 2026-09-19 12:27 UTCGHSA enrichment
  5. 2026-09-19 08:35 UTCVendor advisory
  6. 2026-09-19 08:35 UTCGHSA enrichment
  7. 2026-09-19 04:40 UTCVendor advisory
  8. 2026-09-19 04:40 UTCGHSA enrichment
  9. 2026-09-19 00:47 UTCVendor advisory
  10. 2026-09-19 00:47 UTCGHSA enrichment
  11. 2026-09-18 20:54 UTCGHSA enrichment
  12. 2026-09-18 19:20 UTCCISA KEV update
  13. 2026-09-18 16:59 UTCVendor advisory
  14. 2026-09-18 16:59 UTCGHSA enrichment
  15. 2026-09-18 14:15 UTCCISA KEV update
  16. 2026-09-18 13:06 UTCVendor advisory
  17. 2026-09-18 13:06 UTCGHSA enrichment
  18. 2026-09-18 09:13 UTCVendor advisory
  19. 2026-09-18 09:13 UTCGHSA enrichment
  20. 2026-09-18 05:20 UTCVendor advisory
  21. 2026-09-18 05:20 UTCGHSA enrichment
  22. 2026-09-18 01:27 UTCVendor advisory
  23. 2026-09-18 01:27 UTCGHSA enrichment
  24. 2026-09-17 21:34 UTCVendor advisory
  25. 2026-09-17 21:34 UTCGHSA enrichment
Show 75 more
  1. 2026-09-17 17:41 UTCVendor advisory
  2. 2026-09-17 17:40 UTCGHSA enrichment
  3. 2026-09-17 13:46 UTCVendor advisory
  4. 2026-09-17 13:46 UTCGHSA enrichment
  5. 2026-09-17 09:53 UTCVendor advisory
  6. 2026-09-17 09:53 UTCGHSA enrichment
  7. 2026-09-17 05:59 UTCVendor advisory
  8. 2026-09-17 05:59 UTCGHSA enrichment
  9. 2026-09-17 02:07 UTCVendor advisory
  10. 2026-09-17 02:07 UTCGHSA enrichment
  11. 2026-09-16 22:14 UTCVendor advisory
  12. 2026-09-16 22:14 UTCGHSA enrichment
  13. 2026-09-16 18:21 UTCVendor advisory
  14. 2026-09-16 18:21 UTCGHSA enrichment
  15. 2026-09-16 14:28 UTCVendor advisory
  16. 2026-09-16 14:28 UTCGHSA enrichment
  17. 2026-09-16 14:10 UTCCISA KEV update
  18. 2026-09-16 10:34 UTCVendor advisory
  19. 2026-09-16 10:34 UTCGHSA enrichment
  20. 2026-09-16 06:40 UTCVendor advisory
  21. 2026-09-16 06:40 UTCGHSA enrichment
  22. 2026-09-16 02:47 UTCVendor advisory
  23. 2026-09-16 02:47 UTCGHSA enrichment
  24. 2026-09-15 22:54 UTCVendor advisory
  25. 2026-09-15 22:54 UTCGHSA enrichment
  26. 2026-09-15 19:01 UTCVendor advisory
  27. 2026-09-15 19:01 UTCGHSA enrichment
  28. 2026-09-15 15:06 UTCVendor advisory
  29. 2026-09-15 15:06 UTCGHSA enrichment
  30. 2026-09-15 11:13 UTCVendor advisory
  31. 2026-09-15 11:13 UTCGHSA enrichment
  32. 2026-09-15 07:20 UTCVendor advisory
  33. 2026-09-15 07:20 UTCGHSA enrichment
  34. 2026-09-15 03:27 UTCVendor advisory
  35. 2026-09-15 03:27 UTCGHSA enrichment
  36. 2026-09-14 23:34 UTCVendor advisory
  37. 2026-09-14 23:34 UTCGHSA enrichment
  38. 2026-09-14 19:41 UTCVendor advisory
  39. 2026-09-14 19:41 UTCGHSA enrichment
  40. 2026-09-14 19:24 UTCCISA KEV update
  41. 2026-09-14 15:48 UTCVendor advisory
  42. 2026-09-14 15:48 UTCGHSA enrichment
  43. 2026-09-14 11:55 UTCVendor advisory
  44. 2026-09-14 11:55 UTCGHSA enrichment
  45. 2026-09-14 08:02 UTCVendor advisory
  46. 2026-09-14 08:02 UTCGHSA enrichment
  47. 2026-09-14 04:09 UTCVendor advisory
  48. 2026-09-14 04:09 UTCGHSA enrichment
  49. 2026-09-14 00:16 UTCVendor advisory
  50. 2026-09-14 00:16 UTCGHSA enrichment
  51. 2026-09-13 20:23 UTCVendor advisory
  52. 2026-09-13 20:23 UTCGHSA enrichment
  53. 2026-09-13 16:30 UTCVendor advisory
  54. 2026-09-13 16:30 UTCGHSA enrichment
  55. 2026-09-13 12:36 UTCVendor advisory
  56. 2026-09-13 12:36 UTCGHSA enrichment
  57. 2026-09-13 08:43 UTCVendor advisory
  58. 2026-09-13 08:43 UTCGHSA enrichment
  59. 2026-09-13 04:50 UTCVendor advisory
  60. 2026-09-13 04:50 UTCGHSA enrichment
  61. 2026-09-13 00:57 UTCVendor advisory
  62. 2026-09-13 00:57 UTCGHSA enrichment
  63. 2026-09-12 21:04 UTCVendor advisory
  64. 2026-09-12 21:04 UTCGHSA enrichment
  65. 2026-09-12 17:11 UTCEG score recompute
  66. 2026-09-12 17:11 UTCVendor advisory
  67. 2026-09-12 17:11 UTCGHSA enrichment
  68. 2026-09-12 14:55 UTCEPSS rescore
  69. 2026-09-12 13:18 UTCVendor advisory
  70. 2026-09-12 13:18 UTCGHSA enrichment
  71. 2026-09-12 09:25 UTCVendor advisory
  72. 2026-09-12 09:25 UTCGHSA enrichment
  73. 2026-09-12 05:31 UTCVendor advisory
  74. 2026-09-12 05:31 UTCGHSA enrichment
  75. 2026-09-12 01:38 UTCVendor advisory

Publicly available exploits

(8 references)

Working exploit code is in the public domain (3 Metasploit modules) (5 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-39887
    First seen Jun 6, 2016

    Sun Secure Global Desktop and Oracle Global Desktop 4.61.915 - Command Injection (Shellshock)

    Open source ↗
  • Exploit-DBEDB-39568
    First seen Mar 16, 2016

    Cisco UCS Manager 2.1(1b) - Remote Command Injection (Shellshock)

    Open source ↗
  • Exploit-DBEDB-34900✓ verified
    First seen Oct 6, 2014

    Apache mod_cgi - 'Shellshock' Remote Command Injection

    Open source ↗
  • Exploit-DBEDB-34860
    First seen Oct 2, 2014

    GNU bash 4.3.11 - Environment Variable dhclient

    Open source ↗
  • Exploit-DBEDB-36933✓ verified
    First seen Sep 29, 2014

    dhclient 4.1 - Bash Environment Variable Command Injection (Shellshock)

    Open source ↗
  • Metasploitexploit/multi/http/apache_mod_cgi_bash_env_exec✓ verified
    First seen Sep 24, 2014

    Apache mod_cgi Bash Environment Variable Code Injection (Shellshock)

    Open source ↗
  • Metasploitexploit/multi/http/cups_bash_env_exec✓ verified
    First seen Sep 24, 2014

    CUPS Filter Bash Environment Variable Code Injection (Shellshock)

    Open source ↗
  • Metasploitauxiliary/scanner/http/apache_mod_cgi_bash_env✓ verified
    First seen Sep 24, 2014

    Apache mod_cgi Bash Environment Variable Injection (Shellshock) Scanner

    Open source ↗

Frequently asked(6)

What is CVE-2014-6278?
CVE-2014-6278 is a critical vulnerability published on September 30, 2014. GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary commands via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the modcgi and…
When was CVE-2014-6278 disclosed?
CVE-2014-6278 was first published in the National Vulnerability Database on September 30, 2014, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-6278 actively exploited?
Yes. CISA added CVE-2014-6278 to the Known Exploited Vulnerabilities catalog on October 2, 2025, affecting GNU GNU Bash. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2014-6278?
CVE-2014-6278 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2014-6278?
CVE-2014-6278 affects GNU GNU Bash. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2014-6278?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-6278, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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