Junos Space HTTPD API Flood DoS before 22.2R1-Pv3 or 23.1R1-Pv3
CVE-2025-59975 Published on October 9, 2025
Junos Space: Flooding device with inbound API calls leads to WebUI and CLI management access DoS
An Uncontrolled Resource Consumption vulnerability in the HTTP daemon (httpd) of Juniper Networks Junos Space allows an unauthenticated network-based attacker flooding the device with inbound API calls to consume all resources on the system, leading to a Denial of Service (DoS).
After continuously flooding the system with inbound connection requests, all available file handles become consumed, blocking access to the system via SSH and the web user interface (WebUI), resulting in a management interface DoS. A manual reboot of the system is required to restore functionality.
This issue affects Junos Space:
* all versions before 22.2R1 Patch V3,
* from 23.1 before 23.1R1 Patch V3.
Vulnerability Analysis
CVE-2025-59975 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2025-59975 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2025-59975
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Affected Versions
Juniper Networks Junos Space:- Before 22.2R1 Patch V3 is affected.
- Version 23.1 and below 23.1R1 Patch V3 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.