An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway before 10.5 build 70.8, 11.x before 11.1 build 63.9, 12.0 before build 62.10, 12.1 before build 54.16, and 13.0 before build 41.28. An attacker with management-interface access can bypass authentication to obtain appliance administrative access. These products formerly used the NetScaler brand name.
CVE-2019-18225
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 71.4%
- KEV
- Not listed
Published
October 21, 2019
Last Modified
November 21, 2024
Advisory Details (1)
Auto-updated Jun 6, 2026No patch confirmed yet.
Data Freshness Timeline
(refreshed 9× in last 7d / 38× 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.
- 2026-07-07 13:43 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
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- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-15 17:45 UTCEPSS rescore
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- 2026-06-11 13:58 UTCEPSS rescore
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- 2026-06-08 14:15 UTCEPSS rescore
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- 2026-06-01 13:50 UTCEPSS rescore
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- 2026-05-31 22:29 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 12:41 UTCEG score recompute
- 2026-05-27 12:41 UTCGHSA enrichment
- 2026-05-26 13:42 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 05:37 UTCOSV refresh
Frequently asked(5)
What is CVE-2019-18225?
CVE-2019-18225 is a critical vulnerability published on October 21, 2019. An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway before 10.5 build 70.8, 11.x before 11.1 build 63.9, 12.0 before build 62.10, 12.1 before build 54.16, and 13.0 before build 41.28. An attacker with management-interface access can bypass authentication to obtain…
When was CVE-2019-18225 disclosed?
CVE-2019-18225 was first published in the National Vulnerability Database on October 21, 2019, 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-2019-18225 actively exploited?
CVE-2019-18225 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-18225?
CVE-2019-18225 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-18225?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-18225, 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-2019-18225
Is Your Infrastructure Affected by CVE-2019-18225?
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