EUVD-2026-17950Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK
1 technique 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 | The CVSS vector (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N) indicates network-accessible, low-complexity exploitation requiring high privileges (admin authentication). While the CVSS score of 6.5 suggests Medium severity, the real-world risk is elevated: (1) Root-level command execution (C:H/I:H) provides complete system compromise potential; (2) The authentication requirement (PR:H) narrows the attacker pool to admin users but does not reduce impact if such credentials are compromised; (3) Cisco's explicit High SIR override acknowledges that post-exploitation scenarios (privilege escalation, lateral movement, persistence) are more damaging than the CVSS score reflects; (4) No public exploit code or KEV (active exploitation) data is noted, suggesting limited real-world deployment of weaponized attacks at time of analysis, but the vulnerability remains high-priority for administrators managing UCS infrastructure. This is a high-impact but lower-probability scenario typical of targeted attacks against data center infrastructure. |
| Exploit ScenarioDerived | A malicious insider or attacker who has obtained valid Cisco UCS administrator credentials (e.g., through credential theft or social engineering) logs into the IMC web-based management interface and submits a specially crafted command containing shell metacharacters (e.g., semicolons, pipes, or command substitution syntax) in an input field that is not properly sanitized. The IMC backend passes this input unsanitized to an underlying shell execution function, allowing the attacker to execute arbitrary system commands as root. For example, an attacker could inject commands to create a backdoor user account, exfiltrate sensitive data from the server, or pivot to other systems on the network. No public proof-of-concept or active exploitation (KEV) data is currently documented, but the simplicity of command injection attacks and the high-value nature of data center infrastructure make this a realistic post-authentication attack vector. |
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Alert meAnalysisAIv1 – Apr 01, 2026
Command injection in Cisco IMC web-based management interface allows authenticated remote attackers with admin-level privileges to execute arbitrary commands as root. The vulnerability stems from improper input validation in the web interface, enabling attackers to inject crafted commands that execute on the underlying operating system with elevated privileges. While the CVSS score is 6.5 (Medium), Cisco assigned a High Security Impact Rating due to the root-level code execution capability and potential for post-compromise lateral movement or system takeover.
RemediationAI
Consult the Cisco Security Advisory at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-cmd-inj-3hKN3bVt for the exact patched versions applicable to your UCS product line and IMC firmware version. Primary remediation is to upgrade IMC firmware to the patched release specified for your Cisco UCS Standalone, UCSE, or Enterprise NFV Infrastructure system. As an interim measure, restrict administrative access to the IMC web-based management interface to trusted networks only using firewall rules or network segmentation, disable unused management protocols, and audit administrative activity logs for suspicious command submissions. Ensure that only necessary administrators have IMC admin-level credentials and implement credential rotation policies.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 2 packages in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Cisco Integrated Management Controller (IMC) is the out-of-band management interface for Cisco UCS (Unified Computing System) servers and Enterprise NFV Infrastructure. The vulnerability exploits CWE-77 (Improper Neutralization of Special Elements used in a Command), indicating insufficient sanitization of user input before passing it to operating system command execution functions. The affected systems include Cisco UCS Standalone servers, UCS E-Series (UCSE) software, and Enterprise NFV Infrastructure platforms. The web-based management interface accepts administrative input that, when not properly validated, allows shell metacharacters or command separators to be interpreted as executable commands rather than literal strings, leading to arbitrary command injection at the root privilege level.
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Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Primary rating from Vendor (cisco) · only source for this CVE.
CVSS VectorVendor: cisco
DescriptionCVE.org
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to perform command injection attacks on an affected system and execute arbitrary commands as the root user.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a Security Impact Rating (SIR) of High, rather than Medium as the score indicates, because additional security implications could occur once the attacker has become root.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
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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.
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GitHub PoC
Exploit-DB