CVE-2018-9059

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 77%
CISA-KEV: Not listedEPSS: 77%CVSS: 9.8Exploit: NoneExposed: 0

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

Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 7.2 allows remote attackers to execute arbitrary code via a malicious login request to forum.ghp. NOTE: this may overlap CVE-2014-3791.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
99.5%
KEV
Not listed

Published

April 20, 2018

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 28, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Easy File Sharing Web Server 7.2 - 'UserID' Remote Buffer Overflow (DEP Bypass) - Windows remote Exploit

https://www.exploit-db.com/exploits/44522/
generic🟡 PoC Available

Easy File Sharing Web Server 7.2 - Stack Buffer Overflow - Windows remote Exploit

https://www.exploit-db.com/exploits/44485/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 29× 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. 2026-07-06 16:25 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 02:20 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-06-30 23:20 UTCEPSS rescore
  6. 2026-06-30 23:20 UTCEPSS rescore
  7. 2026-06-29 14:03 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
  9. 2026-06-28 04:53 UTCEPSS rescore
  10. 2026-06-25 13:47 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
  12. 2026-06-24 14:02 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-23 21:30 UTCEPSS rescore
  16. 2026-06-21 01:57 UTCEPSS rescore
  17. 2026-06-21 01:57 UTCEPSS rescore
  18. 2026-06-19 19:23 UTCEPSS rescore
  19. 2026-06-19 19:23 UTCEPSS rescore
  20. 2026-06-18 17:50 UTCEPSS rescore
  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-15 17:45 UTCEPSS rescore
  24. 2026-06-14 23:15 UTCEPSS rescore
  25. 2026-06-14 23:15 UTCEPSS rescore
Show 24 more
  1. 2026-06-13 22:58 UTCEPSS rescore
  2. 2026-06-12 23:09 UTCEPSS rescore
  3. 2026-06-12 23:09 UTCEPSS rescore
  4. 2026-06-10 22:16 UTCEPSS rescore
  5. 2026-06-06 13:45 UTCEPSS rescore
  6. 2026-06-06 13:45 UTCEPSS rescore
  7. 2026-06-05 22:45 UTCEPSS rescore
  8. 2026-06-05 22:45 UTCEPSS rescore
  9. 2026-06-05 06:08 UTCEPSS rescore
  10. 2026-06-05 06:08 UTCEPSS rescore
  11. 2026-06-04 13:10 UTCEPSS rescore
  12. 2026-06-04 13:10 UTCEPSS rescore
  13. 2026-06-02 20:11 UTCEPSS rescore
  14. 2026-05-31 22:29 UTCEPSS rescore
  15. 2026-05-31 22:29 UTCEPSS rescore
  16. 2026-05-31 00:14 UTCEPSS rescore
  17. 2026-05-31 00:14 UTCEPSS rescore
  18. 2026-05-28 13:43 UTCEPSS rescore
  19. 2026-05-28 13:42 UTCEPSS rescore
  20. 2026-05-28 08:45 UTCEG score recompute
  21. 2026-05-28 08:45 UTCGHSA enrichment
  22. 2026-05-26 07:17 UTCEPSS rescore
  23. 2026-05-26 07:17 UTCEPSS rescore
  24. 2026-05-26 01:46 UTCOSV refresh

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-44522
    First seen Apr 24, 2018

    Easy File Sharing Web Server 7.2 - 'UserID' Remote Buffer Overflow (DEP Bypass)

    Open source ↗
  • Exploit-DBEDB-44485
    First seen Apr 18, 2018

    Easy File Sharing Web Server 7.2 - Stack Buffer Overflow

    Open source ↗
  • Metasploitexploit/windows/http/easyfilesharing_seh✓ verified
    First seen Dec 2, 2015

    Easy File Sharing HTTP Server 7.2 SEH Overflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-9059?
CVE-2018-9059 is a critical vulnerability published on April 20, 2018. Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 7.2 allows remote attackers to execute arbitrary code via a malicious login request to forum.ghp. NOTE: this may overlap CVE-2014-3791.
When was CVE-2018-9059 disclosed?
CVE-2018-9059 was first published in the National Vulnerability Database on April 20, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-9059 actively exploited?
CVE-2018-9059 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-9059?
CVE-2018-9059 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-9059?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9059, 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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