CVE-2018-1000117

MEDIUMNVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

Score 6.7 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.7Exploit: NoneExposed: 0

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

Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5.

CVSS v3
6.7
EG Score
6.7(medium)
EPSS
61.6%
KEV
Not listed

Published

March 7, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 43× 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. 2026-07-16 16:59 UTCEPSS rescore
  2. 2026-07-16 16:59 UTCEPSS rescore
  3. 2026-07-15 16:55 UTCEPSS rescore
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  9. 2026-07-12 05:43 UTCEPSS rescore
  10. 2026-07-11 08:24 UTCEPSS rescore
  11. 2026-07-09 19:06 UTCEPSS rescore
  12. 2026-07-08 15:11 UTCEPSS rescore
  13. 2026-07-07 13:42 UTCEPSS rescore
  14. 2026-07-06 16:24 UTCEPSS rescore
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  16. 2026-07-06 02:20 UTCEPSS rescore
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  18. 2026-07-05 02:27 UTCEPSS rescore
  19. 2026-07-04 12:26 UTCOSV refresh
  20. 2026-07-04 06:28 UTCEPSS rescore
  21. 2026-07-04 06:28 UTCEPSS rescore
  22. 2026-07-02 16:54 UTCEPSS rescore
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  1. 2026-06-28 04:53 UTCEPSS rescore
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  3. 2026-06-27 03:06 UTCEPSS rescore
  4. 2026-06-25 13:47 UTCEPSS rescore
  5. 2026-06-24 14:02 UTCEPSS rescore
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  7. 2026-06-23 21:30 UTCEPSS rescore
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  9. 2026-06-22 14:23 UTCEPSS rescore
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  11. 2026-06-21 14:54 UTCEPSS rescore
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  15. 2026-06-19 19:23 UTCEPSS rescore
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  17. 2026-06-18 17:50 UTCEPSS rescore
  18. 2026-06-17 17:50 UTCEPSS rescore
  19. 2026-06-16 17:50 UTCEPSS rescore
  20. 2026-06-16 00:09 UTCOSV refresh
  21. 2026-06-15 17:45 UTCEPSS rescore
  22. 2026-06-14 23:14 UTCEPSS rescore
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  24. 2026-06-13 22:58 UTCEPSS rescore
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  26. 2026-06-12 23:09 UTCEPSS rescore
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  28. 2026-06-11 13:57 UTCEPSS rescore
  29. 2026-06-10 22:15 UTCEPSS rescore
  30. 2026-06-10 13:19 UTCEPSS rescore
  31. 2026-06-08 14:14 UTCEPSS rescore
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  33. 2026-06-07 15:22 UTCEPSS rescore
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  35. 2026-06-06 13:45 UTCEPSS rescore
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  37. 2026-06-05 22:44 UTCEPSS rescore
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  39. 2026-06-05 06:08 UTCEPSS rescore
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  41. 2026-06-04 13:10 UTCEPSS rescore
  42. 2026-06-04 13:10 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
  46. 2026-05-31 00:14 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-28 13:42 UTCEPSS rescore
  51. 2026-05-28 10:46 UTCEG score recompute
  52. 2026-05-28 10:46 UTCGHSA enrichment
  53. 2026-05-27 13:38 UTCEPSS rescore
  54. 2026-05-27 13:38 UTCEPSS rescore
  55. 2026-05-27 03:14 UTCOSV refresh
  56. 2026-05-26 13:42 UTCEPSS rescore
  57. 2026-05-26 07:17 UTCEPSS rescore
  58. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • GitHub PoCu0pattern/CVE-2018-1000117-Exploit
    First seen Jun 5, 2018

    Buffer Overflow Vulnerability that can result ACE

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-1000117?
CVE-2018-1000117 is a medium vulnerability published on March 7, 2018. Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates…
When was CVE-2018-1000117 disclosed?
CVE-2018-1000117 was first published in the National Vulnerability Database on March 7, 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-2018-1000117 actively exploited?
CVE-2018-1000117 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1000117?
CVE-2018-1000117 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2018-1000117?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000117, 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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