CVE-2017-16894

HIGHNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 89% probability of exploitation within the next 30 days (top 0.5% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 87%
CISA-KEV: Not listedEPSS: 87%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In Laravel framework through 5.5.21, remote attackers can obtain sensitive information (such as externally usable passwords) via a direct request for the /.env URI. NOTE: this CVE is only about Laravel framework's writeNewEnvironmentFileWith function in src/Illuminate/Foundation/Console/KeyGenerateCommand.php, which uses file_put_contents without restricting the .env permissions. The .env filename is not used exclusively by Laravel framework.

CVSS v3
7.5
EG Score
9.0(high)
EPSS
99.7%
KEV
Not listed

Published

November 20, 2017

Last Modified

May 13, 2026

References (6)

Data Freshness Timeline

(refreshed 3× in last 7d / 17× 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.

  1. 2026-07-04 06:28 UTCEPSS rescore
  2. 2026-06-30 23:19 UTCEPSS rescore
  3. 2026-06-30 23:19 UTCEPSS rescore
  4. 2026-06-25 13:47 UTCEPSS rescore
  5. 2026-06-25 13:47 UTCEPSS rescore
  6. 2026-06-23 21:30 UTCEPSS rescore
  7. 2026-06-22 21:35 UTCOSV refresh
  8. 2026-06-21 01:57 UTCEPSS rescore
  9. 2026-06-21 01:57 UTCEPSS rescore
  10. 2026-06-17 17:50 UTCEPSS rescore
  11. 2026-06-15 17:45 UTCEPSS rescore
  12. 2026-06-13 22:57 UTCEPSS rescore
  13. 2026-06-12 23:09 UTCEPSS rescore
  14. 2026-06-11 13:57 UTCEPSS rescore
  15. 2026-06-10 22:15 UTCEPSS rescore
  16. 2026-06-07 15:22 UTCEPSS rescore
  17. 2026-06-07 15:22 UTCEPSS rescore
  18. 2026-06-05 22:44 UTCEPSS rescore
  19. 2026-06-05 12:57 UTCOSV refresh
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-06-01 13:49 UTCEPSS rescore
  24. 2026-05-31 00:14 UTCEPSS rescore
  25. 2026-05-29 13:41 UTCEPSS rescore
Show 13 more
  1. 2026-05-28 13:42 UTCEPSS rescore
  2. 2026-05-28 13:42 UTCEPSS rescore
  3. 2026-05-26 07:17 UTCEPSS rescore
  4. 2026-05-26 07:17 UTCEPSS rescore
  5. 2026-05-22 21:15 UTCEPSS rescore
  6. 2026-05-22 21:15 UTCEPSS rescore
  7. 2026-05-22 21:15 UTCEPSS rescore
  8. 2026-05-22 07:51 UTCEG score recompute
  9. 2026-05-22 07:51 UTCGHSA enrichment
  10. 2026-05-20 22:37 UTCEPSS rescore
  11. 2026-05-20 22:37 UTCEPSS rescore
  12. 2026-05-18 21:30 UTCEPSS rescore
  13. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-47129✓ verified
    First seen Jul 16, 2019

    PHP Laravel Framework 5.5.40 / 5.6.x < 5.6.30 - token Unserialize Remote Command Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/unix/http/laravel_token_unserialize_exec✓ verified
    First seen Aug 7, 2018

    PHP Laravel Framework token Unserialize Remote Command Execution

    Open source ↗
  • Nucleihttp/cves/2017/CVE-2017-16894.yaml
    First seen Jan 1, 2017

    Laravel <5.5.21 - Information Disclosure

    Open source ↗

Frequently asked(5)

What is CVE-2017-16894?
CVE-2017-16894 is a high vulnerability published on November 20, 2017. In Laravel framework through 5.5.21, remote attackers can obtain sensitive information (such as externally usable passwords) via a direct request for the /.env URI. NOTE: this CVE is only about Laravel framework's writeNewEnvironmentFileWith function in…
When was CVE-2017-16894 disclosed?
CVE-2017-16894 was first published in the National Vulnerability Database on November 20, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-16894 actively exploited?
CVE-2017-16894 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-16894?
CVE-2017-16894 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2017-16894?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-16894, 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.

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