CVE-2026-19490

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 72% of all CVEs by exploit prediction. 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 — 4 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 0

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

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
9.3
EG Score
9.3(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: Track

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
Severity93% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 20, 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-2026-19490(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 22× in last 7d / 22× 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. 2026-08-21 04:59 UTCGHSA enrichment
  2. 2026-08-21 01:20 UTCEG score recompute
  3. 2026-08-21 01:20 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 21:42 UTCGHSA enrichment
  6. 2026-08-20 18:04 UTCGHSA enrichment
  7. 2026-08-20 14:25 UTCEG score recompute
  8. 2026-08-20 14:25 UTCGHSA enrichment
  9. 2026-08-20 13:33 UTCEG score recompute
  10. 2026-08-20 13:33 UTCGHSA enrichment
  11. 2026-08-20 11:37 UTCGHSA enrichment
  12. 2026-08-20 07:58 UTCGHSA enrichment
  13. 2026-08-20 04:19 UTCEG score recompute
  14. 2026-08-20 04:19 UTCGHSA enrichment
  15. 2026-08-20 04:08 UTCEG score recompute
  16. 2026-08-20 04:08 UTCGHSA enrichment
  17. 2026-08-20 01:30 UTCGHSA enrichment
  18. 2026-08-19 21:51 UTCGHSA enrichment
  19. 2026-08-19 18:12 UTCEG score recompute
  20. 2026-08-19 18:12 UTCGHSA enrichment
  21. 2026-08-19 13:18 UTCEG score recompute
  22. 2026-08-19 13:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19490?
CVE-2026-19490 is a critical 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-2026-19490 disclosed?
CVE-2026-19490 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19490 actively exploited?
CVE-2026-19490 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.3% of all scored CVEs.
What is the CVSS score of CVE-2026-19490?
CVE-2026-19490 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-19490?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19490, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-19490

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