Exploited CVEs / Citrix / CVE-2023-24489
CVE-2023-24489
Citrix Content Collaboration ShareFile Improper Access Control Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2023-09-06 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Citrix Security Bulletins, linked below.
Actively exploited Citrix Content Collaboration vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2023-08-16.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2023-24489
Customer-managed Citrix ShareFile storage zone controllers can be remotely compromised by unauthenticated attackers through this improper access control flaw, rated Critical (CVSS 9.8) with a 95% EPSS score. Storage zone controllers hold the actual files behind a ShareFile deployment, so compromise means direct data access rather than a foothold that still needs escalation. CISA confirmed active exploitation in August 2023.
Do this: Update all ShareFile storage zone controllers and review their file access logs for unauthorized retrieval.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2023-24489
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2023-24489
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2023-09-06 (past due).
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Official fix for CVE-2023-24489
The authoritative fix and affected-version list are published by the vendor. Find the Content Collaboration advisory on Citrix Security Bulletins.
Common questions about CVE-2023-24489
Is CVE-2023-24489 actively exploited?
Yes. CVE-2023-24489 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2023-08-16, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 94%.
What is the CISA deadline and required action for CVE-2023-24489?
CISA set the federal (BOD 22-01) remediation due date at 2023-09-06, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What fixes CVE-2023-24489?
The authoritative fix is in the vendor advisory: see Citrix Security Bulletins for the patched Content Collaboration versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2023-24489?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2023-24489's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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Authoritative references
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