Secure Connect and Security Director
CVE-2025-11198: An unrestricted API allows a network-based unauthenticated attacker to deploy malicious vSRX images to VMWare NSX Server
A Missing Authentication for Critical Function vulnerability in Juniper Networks Security Director Policy Enforcer allows an unauthenticated, network-based attacker to replace legitimate vSRX images with malicious ones.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Security Director Policy Enforcer 0 | 23.1R1 Hotpatch v3 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A Missing Authentication for Critical Function vulnerability in Juniper Networks Security Director Policy Enforcer allows an unauthenticated, network-based attacker to replace legitimate vSRX images with malicious ones.
If a trusted user initiates deployment, Security Director Policy Enforcer will deliver the attacker's uploaded image to VMware NSX instead of a legitimate one.
This issue affects Security Director Policy Enforcer:
- All versions before 23.1R1 Hotpatch v3.
This issue does not affect Junos Space Security Director Insights.
Workarounds
There are no known workarounds for this issue. To reduce the risk of exploitation, enable access control lists (ACLs) and other filtering mechanisms to limit access to the device only from trusted users, hosts and networks.
Exploitation
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.