CVE-2021-34752— Cisco Firepower Threat Defense Command Injection Vulnerabilities
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I. Basic Information for CVE-2021-34752
Vulnerability Information
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Vulnerability Title
Cisco Firepower Threat Defense Command Injection Vulnerabilities
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the CLI of Cisco FTD Software could allow an authenticated, local attacker with administrative privileges to execute arbitrary commands with root privileges on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected commands. A successful exploit could allow the attacker to execute commands with root privileges on the underlying operating system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Firepower Threat Defense 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco Firepower Threat Defense Software 存在安全漏洞，该漏洞源于对用户提供的命令参数的验证不足。攻击者可以通过向受影响的命令提交精心设计的输入来利用此漏洞。成功的利用可能允许攻击者在底层操作系统上以root权限执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3 | - |
II. Public POCs for CVE-2021-34752
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2024-11-15 · 50 CVEs total
| CVE-2023-20036 | 9.9 CRITICAL | Cisco Industrial Network Director Command Injection Vulnerability |
| CVE-2023-20154 | 9.1 CRITICAL | Cisco Modeling Labs External Authentication Bypass Vulnerability |
| CVE-2022-20655 | 8.8 HIGH | Cisco 多款产品操作系统命令注入漏洞 |
| CVE-2023-20125 | 8.6 HIGH | Cisco BroadWorks Network Server TCP Denial of Service Vulnerability |
| CVE-2022-20649 | 8.1 HIGH | Cisco Redundancy Configuration Manager Debug Remote Code Execution Vulnerability |
| CVE-2022-20685 | 7.5 HIGH | Multiple Cisco Products Snort Modbus Denial of Service Vulnerability |
| CVE-2022-20853 | 7.4 HIGH | Cisco Expressway Series and Cisco TelePresence VCS Cross-Site Request Forgery Vulnerabilit |
| CVE-2022-20814 | 7.4 HIGH | Cisco Expressway Series and Cisco TelePresence VCS Improper Certificate Validation Vulnera |
| CVE-2022-20793 | 6.8 MEDIUM | Cisco Touch 10 Device Insufficient Identity Verification Vulnerability |
| CVE-2023-20090 | 6.7 MEDIUM | Cisco TelePresence Collaboration Endpoint and RoomOS Software Privilege Escalation Vulnera |
| CVE-2022-20652 | 6.5 MEDIUM | Cisco Tetration Command Injection Vulnerability |
| CVE-2021-1484 | 6.5 MEDIUM | Cisco SD-WAN vManage Command Injection Vulnerability |
| CVE-2022-20656 | 6.5 MEDIUM | Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Path Traversal V |
| CVE-2022-20931 | 6.5 MEDIUM | Cisco Touch 10 Device Downgrade Attack Vulnerability |
| CVE-2021-1482 | 6.4 MEDIUM | Cisco SD-WAN vManage Authorization Bypass Vulnerability |
| CVE-2021-1483 | 6.4 MEDIUM | Cisco SD-WAN vManage Software XML External Entity Vulnerability |
| CVE-2022-20871 | 6.3 MEDIUM | Cisco Secure Web Appliance Privilege Escalation Vulnerability |
| CVE-2022-20849 | 6.1 MEDIUM | Cisco IOS XR Software Broadband Network Gateway PPPoE Denial of Service Vulnerability |
| CVE-2022-20657 | 6.1 MEDIUM | Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Cross-Site Scrip |
| CVE-2022-20663 | 6.1 MEDIUM | Secure Network Analytics Cross-Site Scripting Vulnerability |
Showing top 20 of 50 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Firepower Threat Defense Software
- CVE-2025-20268
Cisco Secure Firewall Threat Defense Software Geolocation Re - CVE-2025-20222
Cisco Adaptive Security Appliance Software and Firepower Thr - CVE-2025-20217
Cisco Firepower Threat Defense Intrusion Detection Denial of - CVE-2021-1494
Snort 安全漏洞 - CVE-2021-34753
Cisco Firepower Threat Defense Ethernet Industrial Protocol
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2021-34752
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