CVE-2019-18187

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 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: 25%CVSS: 7.5Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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

Trend Micro OfficeScan versions 11.0 and XG (12.0) could be exploited by an attacker utilizing a directory traversal vulnerability to extract files from an arbitrary zip file to a specific folder on the OfficeScan server, which could potentially lead to remote code execution (RCE). The remote process execution is bound to a web service account, which depending on the web platform used may have restricted permissions. An attempted attack requires user authentication.

CVSS v3
7.5
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
25%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

October 28, 2019

Last Modified

October 30, 2025

Advisory Details (3)

Auto-updated Jun 5, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18187
generic🔴 Active Exploitation
https://web.archive.org/web/20200215171235/https://success.trendmicro.com/solution/000151730
generic

Article unavailable

https://success.trendmicro.com/solution/000151730

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 59× in last 7d / 252× 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 955 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2019-18187?
CVE-2019-18187 is a critical vulnerability published on October 28, 2019. Trend Micro OfficeScan versions 11.0 and XG (12.0) could be exploited by an attacker utilizing a directory traversal vulnerability to extract files from an arbitrary zip file to a specific folder on the OfficeScan server, which could potentially lead to remote code execution (RCE). The remote…
When was CVE-2019-18187 disclosed?
CVE-2019-18187 was first published in the National Vulnerability Database on October 28, 2019, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-18187 actively exploited?
Yes. CISA added CVE-2019-18187 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Trend Micro OfficeScan. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-18187?
CVE-2019-18187 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.
Which products are affected by CVE-2019-18187?
CVE-2019-18187 affects Trend Micro OfficeScan. 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-2019-18187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-18187, 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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