CVE-2026-20242— Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability
一分钟漏洞结论
影响对象
Cisco Cisco Secure Firewall Management Center (FMC)
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to ins
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-20242 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device.
This vulnerability is due to insecure deserialization of a user-supplied Java byte stream from a host that is configured in the external database access list. An attacker could exploit this vulnerability by sending a crafted, serialized Java byte stream to a specific TCP port of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the device and elevate privileges to root.
Notes:
This vulnerability can be exploited only by an attacker who has control of a host in the external database access list.
If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Cisco | Cisco Secure Firewall Management Center (FMC) | 7.0.0 | - |
|
二、漏洞 CVE-2026-20242 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-20242 的情报信息
请登录查看更多情报信息。
CVE-2026-20242 其他参考 (1)
同批安全公告 · Cisco · 2026-09-16 · 共 79 条
| CVE-2026-76460 | 10.0 CRITICAL | Cisco Identity Services Engine Authentication Bypass Vulnerability |
| CVE-2026-76423 | 10.0 CRITICAL | Cisco ISE API Authentication Bypass Vulnerability |
| CVE-2026-20130 | 10.0 CRITICAL | Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities |
| CVE-2026-20192 | 10.0 CRITICAL | Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities |
| CVE-2026-20332 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20307 | 9.9 CRITICAL | Cisco ISE远程代码执行漏洞 |
| CVE-2026-20234 | 9.9 CRITICAL | Cisco ISE 凭据保护不足漏洞 |
| CVE-2026-20329 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20322 | 9.9 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Access |
| CVE-2026-20330 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20325 | 9.9 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Neutra |
| CVE-2026-20324 | 9.9 CRITICAL | Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerabil |
| CVE-2026-20326 | 9.8 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Missing Authent |
| CVE-2026-20331 | 9.6 CRITICAL | 思科防火墙软件保护机制失效漏洞 |
| CVE-2026-20211 | 9.1 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20306 | 9.1 CRITICAL | Cisco Identity Services Engine 命令注入漏洞 |
| CVE-2026-20237 | 9.1 CRITICAL | Cisco Identity Services Engine Hardening Release - Input Validation Vulnerabilities |
| CVE-2026-20341 | 9.1 CRITICAL | Cisco Secure Firewall Management Center Software sftunnel Deserialization Root Command Exe |
| CVE-2026-20176 | 9.1 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20284 | 9.1 CRITICAL | Cisco Identity Search Engine SXP REST API SQL Injection Vulnerability |
显示前 20 条，共 79 条。 查看全部 → →
IV. Related Vulnerabilities
Same product: Cisco Secure Firewall Management Center (FMC)
-
CVE-2026-20342
Cisco Secure Firewall Management Center Software Low Privile -
CVE-2026-20323
Cisco Secure Firewall Management Center and Secure Firewall -
CVE-2026-76412
Cisco Secure Firewall Management Center Software Authenticat -
CVE-2026-20344
Cisco Secure Firewall Management Center Software SQL Injecti -
CVE-2026-20343
Cisco Secure Firewall Management Center Software Information
Same vendor: Cisco
-
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability -
CVE-2026-76447
Cisco Identity Services Engine Certificate Reload Vulnerabil
Same weakness: CWE-502
-
CVE-2026-92785
Angel 3.3.0 未认证 Kryo 反序列化漏洞 -
CVE-2026-20340
Cisco Secure Firewall Management Center Software Deserializa -
CVE-2026-20341
Cisco Secure Firewall Management Center Software sftunnel De -
CVE-2026-20211
Cisco Identity Services Engine Remote Code Execution Vulnera -
CVE-2026-20307
Cisco ISE远程代码执行漏洞
V. Comments for CVE-2026-20242
暂无评论