Guardian
CVE-2021-26724
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.6 (HIGH). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. |
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Alert meAnalysisAI
OS Command Injection vulnerability when changing date settings or hostname using web GUI of Nozomi Networks Guardian and CMC allows authenticated administrators to perform remote code execution. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. OS Command Injection vulnerability when changing date settings or hostname using web GUI of Nozomi Networks Guardian and CMC allows authenticated administrators to perform remote code execution. This issue affects: Nozomi Networks Guardian 20.0.7.3 version 20.0.7.3 and prior versions. Nozomi Networks CMC 20.0.7.3 version 20.0.7.3 and prior versions. Affected products include: Nozominetworks Central Management Control, Nozominetworks Guardian. Version information: version 20.0.7.3.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Primary rating from Vendor (nozominetworks) · only source for this CVE.
CVSS VectorVendor: nozominetworks
DescriptionCVE.org
OS Command Injection vulnerability when changing date settings or hostname using web GUI of Nozomi Networks Guardian and CMC allows authenticated administrators to perform remote code execution. This issue affects: Nozomi Networks Guardian 20.0.7.3 version 20.0.7.3 and prior versions. Nozomi Networks CMC 20.0.7.3 version 20.0.7.3 and prior versions.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)CVE.org
OS command injection in Guardian language-system lets unauthenticated remote attackers run arbitrary shell commands by i
Remote code execution in Guardian language-system allows unauthenticated attackers to run arbitrary OS commands by injec
Unauthenticated SQL injection in Guardian Language System lets remote attackers manipulate the backend database by injec
Error-based SQL injection in Guardian Language-System allows a network-accessible authenticated attacker to extract the
SQL injection in Guardian Language-System's designer.php (line 124) allows attackers to extract, modify, or destroy the
Error-based SQL injection in Guardian language-system's subtitles.php exposes full database contents to low-privileged a
Error-based SQL injection in Guardian Language-System exposes the full database to low-privileged authenticated attacker
Error-based SQL injection in Guardian language-system's text_file.php exposes the full database to extraction via a triv
SQL injection in Guardian language-system's media.php endpoint allows low-privilege authenticated attackers to extract t
Nozomi Networks OS before 19.0.4 allows /#/network?tab=network_node_list.html CSV Injection. Rated high severity (CVSS 7
Nozomi Guardian before 19.0.4 allows attackers to achieve stored XSS (in the web front end) by leveraging the ability to
A SQL Injection vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields us
GitHub PoC
Exploit-DB