CVE-2019-11634

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

Citrix Workspace App before 1904 for Windows has Incorrect Access Control.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 96.8%
KEV: ⚠ Exploited

Published

May 22, 2019

Last Modified

November 6, 2025

Advisory Details (3)

Auto-updated Jun 1, 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-2019-11634

generic

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https://support.citrix.com/v1/search?searchQuery=%22%22&lang=en&sort=cr_date_desc&prod=&pver=&ct=Security+Bulletin

generic

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https://support.citrix.com/article/CTX251986

Weakness Classification(1)

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

CWE-284Improper Access Control

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 22:52 UTCEG score recompute
2026-06-03 22:52 UTCGHSA enrichment
2026-06-03 19:11 UTCEG score recompute
2026-06-03 19:11 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 15:30 UTCEG score recompute
2026-06-03 15:30 UTCGHSA enrichment
2026-06-03 11:49 UTCEG score recompute
2026-06-03 11:49 UTCGHSA enrichment
2026-06-03 08:08 UTCEG score recompute
2026-06-03 08:08 UTCGHSA enrichment
2026-06-03 04:27 UTCEG score recompute
2026-06-03 04:27 UTCGHSA enrichment
2026-06-03 00:46 UTCEG score recompute
2026-06-03 00:45 UTCGHSA enrichment
2026-06-02 21:03 UTCEG score recompute
2026-06-02 21:03 UTCGHSA enrichment
2026-06-02 20:11 UTCepss_batch
2026-06-02 18:32 UTCkev_newly_listed
2026-06-02 17:22 UTCEG score recompute

Frequently asked(6)

What is CVE-2019-11634?

CVE-2019-11634 is a critical vulnerability published on May 22, 2019. Citrix Workspace App before 1904 for Windows has Incorrect Access Control.

When was CVE-2019-11634 disclosed?

CVE-2019-11634 was first published in the National Vulnerability Database on May 22, 2019, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-11634 actively exploited?

Yes. CISA added CVE-2019-11634 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Citrix Workspace Application and Receiver for Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2019-11634?

CVE-2019-11634 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2019-11634?

CVE-2019-11634 affects Citrix Workspace Application and Receiver for Windows. 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-2019-11634?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-11634, 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

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CVE-2019-11634

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

Known Exploited Vulnerabilities Catalog | CISA

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Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-11634?

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Advisory Details (3)

Frequently asked(6)

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