Skip to main content

Cisco Nexus Dashboard CVE-2026-20325

| EUVDEUVD-2026-81102 CRITICAL
Command Injection (CWE-77)
2026-09-16 cisco GHSA-f725-hx4h-h3g2
9.9
CVSS 3.1 · Vendor: cisco
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate to Nexus Dashboard (PR:L)
  2. Delivery
    Submit crafted input to command-handling function
  3. Exploit
    Inject unneutralized OS command (CWE-77)
  4. Execution
    Execute code in platform context
  5. Persist
    Cross scope boundary (S:C) to managed fabric
  6. Impact
    Full compromise of confidentiality, integrity, availability

Vulnerability 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.

Exploitation Conditions

Requires authenticated access to the Cisco Nexus Dashboard management interface (PR:L) - an attacker must already possess valid low-privilege credentials or a session, which is the primary limiting factor. Given AV:N/AC:L/UI:N, once authenticated the injection is reachable over the network with low complexity and no user interaction. The grouped hardening advisory does not enumerate a specific feature toggle or non-default configuration prerequisite for CVE-2026-20325, so it should be assumed reachable in standard deployments of affected Nexus Dashboard versions; consult the Cisco advisory fixed-release table for exact affected versions.

Impact

This is a vendor-asserted 9.9 Critical (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) command-injection flaw (CWE-77) in Cisco Nexus Dashboard, disclosed as part of a grouped internal 'hardening release' advisory (cisco-sa-hardening-ndw1-psFvnrg) rather than an externally-reported single-issue advisory. The score reflects genuinely high-impact shape - network-reachable, low-complexity, authenticated (PR:L), with a scope change (S:C) and full C:H/I:H/A:H - but every impact metric is Cisco-asserted from an internal review with no per-CVE technical breakdown. No EPSS score, no CISA KEV listing, and no public POC are provided, so exploitation status is 'no public exploit identified at time of analysis.' The key mitigating signal is PR:L: an attacker needs valid credentials/authenticated access to the Nexus Dashboard, which meaningfully limits the unauthenticated internet-scan threat despite AV:N. Net: a real patch-priority item for organizations running Nexus Dashboard because of the RCE-class impact and low complexity, but the absence of active-exploitation or POC signals and the authentication requirement argue for prompt scheduled patching rather than emergency response. Note the grouped-advisory format means precise affected version boundaries and per-CVE conditions are not enumerated in the provided data - verify against the Cisco advisory fixed-release table.

Exploit ScenarioDerived

An attacker with valid low-privilege authenticated access to a Cisco Nexus Dashboard instance submits crafted input to a function that passes it to a system command without proper neutralization, injecting OS commands that execute in the underlying platform context. Because the scope changes (S:C), the attacker can pivot beyond the vulnerable component to impact the broader orchestration platform and the fabric it manages. No public exploit code is identified at time of analysis; the flaw was internally discovered by Cisco.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.3% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Sep 16, 2026

Command injection (CWE-77) in Cisco Nexus Dashboard allows a remote, authenticated attacker holding low-privilege credentials to inject and execute arbitrary commands, carrying a vendor-assigned CVSS of 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) with high confidentiality, integrity, and availability impact and a Scope:Changed rating. The flaw was disclosed as one of multiple issues fixed in a grouped Cisco internal 'hardening release' advisory (cisco-sa-hardening-ndw1-psFvnrg) rather than a single externally reported CVE, so specific exploit prerequisites and exact affected version boundaries should be confirmed against that advisory's fixed-release table. Authentication is the primary limiting factor - the attacker must already possess valid low-privilege credentials or a session on the management interface - and no public exploit code or confirmed active exploitation was identified at time of analysis.

RemediationAI

Apply the hardened Nexus Dashboard release identified in Cisco's advisory cisco-sa-hardening-ndw1-psFvnrg (https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1-psFvnrg), matching your deployed version against the fixed-release table before upgrading; patch availability is confirmed per vendor advisory, but no exact fixed version string is provided in the available data, so do not assume a version number without checking the Cisco table. Until the upgrade is completed, the highest-value compensating control is to tightly limit who can authenticate to the Nexus Dashboard management interface: enforce least-privilege RBAC and remove or disable unused low-privilege accounts, since PR:L indicates any valid low-privilege session is enough to reach the injection - the trade-off is reduced operational flexibility for read-only or delegated users. Additionally, restrict network access to the management plane with firewall rules, ACLs, or management-network segmentation so only trusted administrative subnets can reach the interface, accepting the trade-off that remote administration from outside those subnets becomes impossible. Because the defect is an input-neutralization flaw in a command sink, there is no reliable configuration toggle that removes the exposure; monitor Nexus Dashboard audit and system logs for anomalous command or API activity as a detection measure, understanding that logging detects rather than prevents exploitation.

Affected VersionsENISA

Cisco Nexus Dashboard 3.1(1n)
Cisco Nexus Dashboard 3.3(1a)
Cisco Nexus Dashboard 2.2(1e)
Cisco Nexus Dashboard 2.2(1h)
Cisco Nexus Dashboard 3.2(2g)
Cisco Nexus Dashboard 2.1(2d)
Cisco Nexus Dashboard 3.0(1f)
Cisco Nexus Dashboard 2.3(2b)
Cisco Nexus Dashboard 2.1(1d)
Cisco Nexus Dashboard 3.3(1b)
Cisco Nexus Dashboard 3.2(1i)
Cisco Nexus Dashboard 3.1(1k)
Cisco Nexus Dashboard 3.0(1i)
Cisco Nexus Dashboard 4.0(1i)
Cisco Nexus Dashboard 3.3(2b)
Cisco Nexus Dashboard 3.1(1l)
Cisco Nexus Dashboard 3.2(2f)
Cisco Nexus Dashboard 2.2(2d)
Cisco Nexus Dashboard 2.3(2c)
Cisco Nexus Dashboard 4.1(1g)
Cisco Nexus Dashboard 4.2.1
Cisco Nexus Dashboard 3.2(2m)
Cisco Nexus Dashboard 2.3(1c)
Cisco Nexus Dashboard 2.1(1e)
Cisco Nexus Dashboard 2.3(2d)
Cisco Nexus Dashboard 2.1(2f)
Cisco Nexus Dashboard 3.2(1e)
Cisco Nexus Dashboard 2.3(2e)
Cisco Nexus Dashboard 3.3(2g)

Affected Packages

euvd cisco_nexus_dashboard no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The root cause is CWE-77, improper neutralization of special elements used in a command (command injection), meaning user-supplied input reaches a shell or command-execution sink without adequate escaping or argument validation. Cisco Nexus Dashboard is the centralized management, orchestration, and visibility platform used to operate Nexus data center fabrics and multi-site deployments, so compromising it can yield control over managed infrastructure. The CVSS vector indicates network reachability (AV:N), low attack complexity (AC:L), no user interaction (UI:N), and privileges required (PR:L) - an authenticated, low-privilege user is the entry condition. Scope:Changed (S:C) is notable because it signals that successful exploitation can impact resources beyond the vulnerable component's own security authority, i.e., lateral movement or command execution in the context of the underlying system rather than being contained within the application. The affected CPE, cpe:2.3:a:cisco:cisco_nexus_dashboard:*:*:*:*:*:*:*:*, is a version wildcard, so all shipped versions should be treated as potentially affected pending the advisory's fixed-release mapping; no specific non-default configuration or feature toggle is enumerated in the hardening advisory.

Know when Cisco Nexus Dashboard gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (cisco) PRIMARY 9.9 CRITICAL
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vuln.today AI 9.9 CRITICAL

Authenticated (PR:L) network command injection yielding OS-level execution justifies C:H/I:H/A:H; S:C is defensible as Nexus Dashboard orchestrates and impacts the managed fabric beyond the vulnerable component.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N

Primary rating from Vendor (cisco).

CVSS VectorVendor: cisco

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Nexus Dashboard engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-20325 are related to improper neutralization of special elements used in a command issue that are grouped under the Common Weakness Enumeration (CWE) CWE-77.

Executive ViewAI

Why It Matters

Cisco Nexus Dashboard is affected by CVE-2026-20325, a critical command-injection flaw that allows an authenticated attacker with low-privilege credentials to execute arbitrary commands on the management platform, potentially compromising data center network confidentiality, integrity, and availability. No public exploit identified at time of analysis and no confirmed actively exploited (CISA KEV) activity, but no vendor-released patch identified at time of analysis, leaving a central management system exposed until Cisco guidance is applied. Leadership should prioritize exposure reduction and emergency patching because compromise could disrupt or grant control over critical network infrastructure.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting management interface access to trusted networks, enforcing MFA and least privilege, disabling unused low-privilege accounts, segmenting Nexus Dashboard from production traffic, enabling detailed logging and monitoring for command-injection activity, and consulting Cisco advisory cisco-sa-hardening-ndw1-psFvnrg for fixed-release guidance.

Threat Intelligence Overview

EPSS Score
0.3%
Top 72% exploitable
Prevalence
Medium
Cisco enterprise data-center fabric management appliance, common but not ubiquitous
Data Quality
4 sources
Confidence: Medium

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.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Very High
Technical Impact
Partial

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +50
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy