Virtual Storage Integrator for VMware vSphere…: Improper Neutralization of Special Elements used in an OS Command
CVE-2026-67261 is a critical-severity improper neutralization of special elements used in an OS command vulnerability in Virtual Storage Integrator for VMware vSphere Client from Dell, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 10.11.1.0 or later as the first without the flaw, so updating Virtual Storage Integrator for VMware vSphere Client to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 2.32% chance of exploitation within 30 days, higher than 84% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Virtual Storage Integrator for VMware vSphere Client to 10.11.1.0 or later or a later version.
- Update Virtual Storage Integrator to 10.11.1.0 or a later version.
- Read the advisory on dell.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dell | Virtual Storage Integrator for VMware vSphere Client | before 10.11.1.0 or later | 10.11.1.0 or later |
| Dell | Virtual Storage Integrator | before 10.11.1.0 | 10.11.1.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (emc.com).
Official description
Dell Virtual Storage Integrator for VMware vSphere Client, versions prior to 10.11.1.0, contain(s) an OS Command Injection vulnerability in the IAPI component. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the application's underlying operating system with root privileges. Exploitation may lead to a complete system takeover by an attacker. This vulnerability is considered critical as it allows an unauthenticated remote attacker to achieve arbitrary code execution as root, potentially compromising the entire VSI deployment and underlying infrastructure. Dell recommends customers to upgrade at the earliest opportunity.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in an OS Command
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- For any data that will be used to generate a command to be executed, keep as much of that data out of external control as possible. For example, in web applications, this may require storing the data locally in the session's state instead of sending it out to the client in a hidden form field.
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
More Improper Neutralization of Special Elements used in an OS Command vulnerabilities (CWE-78)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Virtual Storage Integrator for VMware vSphere Client
- 9.8 Critical severity
Recent Improper Neutralization of Special Elements used in an OS Command vulnerabilities
- 7.3 High severity
- 7.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.0 High severity
- 8.0 High severity
Spotted an error? Tell us.