CVE-2018-19949

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 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
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 24%CVSS: 9.8Exploit: cisa kev · ssvc active · kev ransomware · epss top5pctExposed: 0

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

If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
84(Attend)
EG Risk 84/100SSVC: 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
Severity98% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
24%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

October 28, 2020

Last Modified

August 13, 2026

Advisory Details (2)

Auto-updated Sep 17, 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-2018-19949
generic

Multiple Vulnerabilities in File Station - Security Advisory | 威聯通科技 QNAP

https://www.qnap.com/zh-tw/security-advisory/qsa-20-01

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 59× in last 7d / 254× 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 921 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2018-19949?
CVE-2018-19949 is a critical vulnerability published on October 28, 2020. If exploited, this command injection vulnerability could allow remote attackers to run arbitrary commands. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build…
When was CVE-2018-19949 disclosed?
CVE-2018-19949 was first published in the National Vulnerability Database on October 28, 2020, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-19949 actively exploited?
Yes. CISA added CVE-2018-19949 to the Known Exploited Vulnerabilities catalog on May 24, 2022, affecting QNAP Network Attached Storage (NAS). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-19949?
CVE-2018-19949 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2018-19949?
CVE-2018-19949 affects QNAP Network Attached Storage (NAS). 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-2018-19949?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-19949, 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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