CVE Feed

    Dashboard / CVE / CVE-2021-1448

    CVE-2021-1448

    A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device that is running in multi-instance mode. 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 command. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

    Published:Apr 29, 2021
    Last Modified:Aug 11, 2026
    EPS:Apr 29, 2021
    EPSS Score:0.00302
    CVSS Score:7.8

    Affected Products

    Vendor
    Cisco
    Product
    Firepower 4110
    Vendor
    Cisco
    Product
    Firepower 4112
    Vendor
    Cisco
    Product
    Firepower 4115
    Vendor
    Cisco
    Product
    Firepower 4120
    Vendor
    Cisco
    Product
    Firepower 4125
    Vendor
    Cisco
    Product
    Firepower 4140
    Vendor
    Cisco
    Product
    Firepower 4145
    Vendor
    Cisco
    Product
    Firepower 4150
    Vendor
    Cisco
    Product
    Firepower 9300
    Vendor
    Cisco
    Product
    Secure Firewall Threat Defense

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-15 Command Delimiters
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-6 Argument Injection
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2024-20294 (CVSS 6.6) — A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco FXOS Software and Cisco NX-OS Sof…
    CVE-2023-20234 (CVSS 4.4) — A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to create a fil…
    CVE-2023-20016 (CVSS 6.3) — A vulnerability in the backup configuration feature of Cisco UCS Manager Software and in the configuration exp…
    CVE-2023-20015 (CVSS 6) — A vulnerability in the CLI of Cisco Firepower 4100 Series, Cisco Firepower 9300 Security Appliances, and Cisco…
    CVE-2022-20865 (CVSS 6.7) — A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to inject arbit…
    CVE-2022-20866 (CVSS 7.4) — A vulnerability in the handling of RSA keys on devices running Cisco Adaptive Security Appliance (ASA) Softwar…
    CVE-2022-20828 (CVSS 6.5) — A vulnerability in the CLI parser of Cisco FirePOWER Software for Adaptive Security Appliance (ASA) FirePOWER …
    CVE-2022-20829 (CVSS 9.1) — A vulnerability in the packaging of Cisco Adaptive Security Device Manager (ASDM) images and the validation of…
    CVE-2022-20751 (CVSS 8.6) — A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software co…
    CVE-2022-20795 (CVSS 5.8) — A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High