Cisco · Secure Firewall Management Center (FMC)
CVE-2026-20316
Cisco Secure Firewall Management Center Software Static Credential Vulnerability
这是什么
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems.
This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user.
Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.
Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges.
CISA: Cisco Secure Firewall Management Center (FMC) formerly known as Firepower Management Center contains a use of hard-coded password vulnerability that could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems.
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8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3月19日 | Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data | Secure Firewall Management Center (FMC) | 严重 10.0 | 43% |
| 2026年10月14日 | Relative Path Traversal | Secure Email Gateway | 严重 9.8 | 2.2% |
| 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 | 30% |
| 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 | 88% |
| 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13日 | Cross-Site Request Forgery | IOS | 高 8.1 | 34% |
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。