Citrix · NetScaler
CVE-2026-88779
Memory overflow vulnerability leading to Denial of Service
무엇인가
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.
할 일
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.
미국 연방 기관 조치 기한: 2026년 10월 7일
Citrix의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2026. 9. 27. | Improper Input Validation | NetScaler | 치명적 9.5 | 82% |
| 2026. 9. 27. | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | 치명적 9.5 | 78% |
| 2026. 9. 9. | Authentication Bypass Using an Alternate Path or Channel | NetScaler | 치명적 9.3 | 33% |
| 2026. 3. 30. | Out-of-Bounds Read | NetScaler | 치명적 9.3 | 91% |
| 2025. 8. 26. | Memory Overflow | NetScaler | 치명적 9.2 | 21% |
| 2026. 8. 26. | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler ADC and NetScaler Gateway | 높음 8.8 | 1.0% |
| 2025. 8. 25. | Improper Privilege Management | Session Recording | 보통 5.1 | 3.5% |
| 2025. 8. 25. | Deserialization of Untrusted Data | Session Recording | 보통 5.1 | 21% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.