Citrix · NetScaler
CVE-2026-88779
Memory overflow vulnerability leading to Denial of Service
ما هي
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.
CISA: Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.
ما العمل
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
الموعد النهائي للوكالات الفدرالية الأمريكية: 7 أكتوبر 2026
ثغرات مُستغلّة أخرى من Citrix
| أُضيفت | الثغرة | المنتج | الخطورة | احتمال الهجوم |
|---|---|---|---|---|
| 27/09/2026 | Improper Input Validation | NetScaler | حرجة 9.5 | 82% |
| 27/09/2026 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | حرجة 9.5 | 78% |
| 09/09/2026 | Authentication Bypass Using an Alternate Path or Channel | NetScaler | حرجة 9.3 | 33% |
| 30/03/2026 | Out-of-Bounds Read | NetScaler | حرجة 9.3 | 91% |
| 26/08/2025 | Memory Overflow | NetScaler | حرجة 9.2 | 21% |
| 26/08/2026 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler ADC and NetScaler Gateway | مرتفع 8.8 | 1.0% |
| 25/08/2025 | Improper Privilege Management | Session Recording | متوسطة 5.1 | 3.5% |
| 25/08/2025 | Deserialization of Untrusted Data | Session Recording | متوسطة 5.1 | 21% |
المصادر: Known Exploited Vulnerabilities (CISA، ملكية عامة)، وCVE records (cve.org)، وEPSS (FIRST). احتمال الهجوم هو تقدير EPSS لاحتمال أن يحاول أحد استغلال الثغرة خلال الأيام الـ30 القادمة.