Citrix · NetScaler
CVE-2026-88771
A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands
这是什么
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.
CISA: Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands.
该怎么做
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.
美国联邦机构的修复期限：2026年9月30日
Citrix 的其他被利用漏洞
| 加入日期 | 漏洞 | 产品 | 严重程度 | 受攻击概率 |
|---|---|---|---|---|
| 2026年10月4日 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | 高 8.7 | 11% |
| 2026年9月27日 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | 严重 9.5 | 78% |
| 2026年9月9日 | Authentication Bypass Using an Alternate Path or Channel | NetScaler | 严重 9.3 | 33% |
| 2026年3月30日 | Out-of-Bounds Read | NetScaler | 严重 9.3 | 91% |
| 2025年8月26日 | Memory Overflow | NetScaler | 严重 9.2 | 21% |
| 2026年8月26日 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler ADC and NetScaler Gateway | 高 8.8 | 1.0% |
| 2025年8月25日 | Improper Privilege Management | Session Recording | 中 5.1 | 3.5% |
| 2025年8月25日 | Deserialization of Untrusted Data | Session Recording | 中 5.1 | 21% |
来源：Known Exploited Vulnerabilities（CISA，公有领域）、CVE records（cve.org）和 EPSS（FIRST）。受攻击概率是 EPSS 对未来 30 天内有人尝试利用该漏洞的估计。