CVE-2025-59975

Junos Space: Flooding device with inbound API calls leads to WebUI and CLI management access DoS

Published Oct 9, 2025 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: Junos Space 22.2R1 Patch V3, 23.1R1 Patch V3, 24.1R1, and all subsequent releases.


Vendor Workaround

Use access lists or firewall filters to limit access to the device only from trusted hosts and administrators.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:juniper:junos_space:*:*:*:*:*:*:*:*
cpe:2.3:a:juniper:junos_space:22.2:r1:*:*:*:*:*:*
cpe:2.3:a:juniper:junos_space:23.1:r1:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Juniper
Juniper junos
Juniper junos Space
Vendors & Products Juniper
Juniper junos
Juniper junos Space
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Junos Space: Flooding device with inbound API calls leads to WebUI and CLI management access DoS
Weaknesses CWE-400
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/V:C/RE:M'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Oct 9, 2025, 7:49 PM
Reserved
Sep 23, 2025, 6:19 PM
Status
Analyzed
Published
Oct 9, 2025, 4:15 PM
Modified
Oct 8, 2026, 1:10 PM