CVE-2026-19489

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 3.2% (87th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

Vulnerability in NetScaler ADC and NetScaler Gateway.

This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA SSVC

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
Severity88% × 45%
Exploitation3% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
3.2%
EPSS %ILE
87th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 19, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

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https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939

Vendor Advisories for CVE-2026-19489(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 101× 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 171 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19489?
CVE-2026-19489 is a high vulnerability published on August 19, 2026. Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
When was CVE-2026-19489 disclosed?
CVE-2026-19489 was first published on August 19, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19489 actively exploited?
CVE-2026-19489 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.2% probability of exploitation in the next 30 days (87th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19489?
CVE-2026-19489 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19489?
No fix for CVE-2026-19489 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-19489 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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