CVE-2018-1000837

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 10.0Exploit: NoneExposed: 0

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

UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via malicious plugins.xml file.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
—
EPSS
76.2%
KEV
Not listed

Published

December 20, 2018

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jul 18, 2026
No patch confirmed yet.
generic

Issue · GitHub

https://github.com/ObeoNetwork/UML-Designer/issues/1035
generic

UML Designer XXE | 0dd - The Zero (0) Day Division

https://0dd.zone/2018/10/28/uml-designer-XXE/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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. 2026-07-22 22:12 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-20 17:04 UTCEPSS rescore
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  19. 2026-07-12 19:37 UTCOSV refresh
  20. 2026-07-12 05:43 UTCEPSS rescore
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  1. 2026-07-06 16:24 UTCEPSS rescore
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  19. 2026-06-24 04:29 UTCOSV refresh
  20. 2026-06-23 21:30 UTCEPSS rescore
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  22. 2026-06-22 14:23 UTCEPSS rescore
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  28. 2026-06-19 19:23 UTCEPSS rescore
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  30. 2026-06-18 17:50 UTCEPSS rescore
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  40. 2026-06-11 13:57 UTCEPSS rescore
  41. 2026-06-10 22:15 UTCEPSS rescore
  42. 2026-06-10 13:19 UTCEPSS rescore
  43. 2026-06-08 14:14 UTCEPSS rescore
  44. 2026-06-08 14:14 UTCEPSS rescore
  45. 2026-06-07 15:22 UTCEPSS rescore
  46. 2026-06-07 15:22 UTCEPSS rescore
  47. 2026-06-07 09:00 UTCOSV refresh
  48. 2026-06-06 13:45 UTCEPSS rescore
  49. 2026-06-06 13:45 UTCEPSS rescore
  50. 2026-06-05 22:44 UTCEPSS rescore
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  56. 2026-06-02 20:11 UTCEPSS rescore
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  58. 2026-06-01 13:49 UTCEPSS rescore
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  60. 2026-05-31 22:28 UTCEPSS rescore
  61. 2026-05-31 00:14 UTCEPSS rescore
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  63. 2026-05-29 13:41 UTCEPSS rescore
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  66. 2026-05-27 13:38 UTCEPSS rescore
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  68. 2026-05-26 13:42 UTCEPSS rescore
  69. 2026-05-26 07:17 UTCEPSS rescore
  70. 2026-05-26 07:17 UTCEPSS rescore
  71. 2026-05-23 02:43 UTCEG score recompute
  72. 2026-05-23 02:43 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2018-1000837?
CVE-2018-1000837 is a critical vulnerability published on December 20, 2018. UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via malicious plugins.xml file.
When was CVE-2018-1000837 disclosed?
CVE-2018-1000837 was first published in the National Vulnerability Database on December 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-2018-1000837 actively exploited?
CVE-2018-1000837 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1000837?
CVE-2018-1000837 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2018-1000837?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000837, 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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