Cisco · Secure Firewall ASA Software and Cisco Secure FTD Software
CVE-2026-76418
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability
这是什么
A vulnerability in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to logic errors when secondary authentication is configured on a tunnel group. An attacker could exploit this vulnerability by sending a crafted request when connecting to the SSL remote access VPN. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
CISA: Cisco Secure Firewall ASA Software and Cisco Secure FTD Software contains an unchecked return value to NULL pointer dereference vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.
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11月1日
Cisco 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11月10日 | Improper Restriction of XML External Entity Reference | BroadWorks | 高 7.5 | 0.8% |
| 2026年10月14日 | Relative Path Traversal | Secure Email Gateway | 严重 9.8 | 6.2% |
| 2026年9月30日 | Hex Encoding | Catalyst SD-WAN Manager | 严重 9.8 | 39% |
| 2026年9月16日 | Incorrect Use of Privileged APIs | Identity Services Engine | 严重 10.0 | 76% |
| 2026年9月14日 | SQL Injection | Secure Email Gateway | 严重 9.8 | 40% |
| 2026年9月9日 | Firewall Management Center Authentication Bypass Using an Alternate Path or Channel | Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | 严重 10.0 | 89% |
| 2026年8月11日 | Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection | Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) | 高 8.6 | 1.0% |
| 2026年7月29日 | Secure Firewall Management Center Use of Hard-coded Password | Secure Firewall Management Center (FMC) | 中 5.3 | 35% |
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。