Citrix · NetScaler ADC and Gateway
CVE-2025-6543
Memory overflow vulnerability leading to unintended control flow and Denial of Service
这是什么
Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CISA: Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
该怎么做
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
美国联邦机构的修复期限:2025年7月21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 |
|---|---|---|---|---|
| 2025年7月10日 | Out-of-Bounds Read | NetScaler ADC and Gateway | 严重 9.3 | >99.9% |
| 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 Input Validation | NetScaler | 严重 9.5 | 82% |
| 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% |
| 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% |
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。