Junos Space: Flooding device with inbound API calls leads to WebUI and CLI management access DoS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos Space | before 22.2R1 Patch V3; 23.1 to before 23.1R1 Patch V3 | 22.2R1 Patch V3, 23.1R1 Patch V3 | Patch available | CNA |
- Junos Space VendorJuniper Affected before 22.2R1 Patch V3; 23.1 to before 23.1R1 Patch V3 Fixed in 22.2R1 Patch V3, 23.1R1 Patch V3 Patch available CNA
Remediation
- Fix · CNA Junos Space (Juniper Networks) Fixed in 22.2R1 Patch V3, 23.1R1 Patch V3
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59975
- 2026-10-03 Alias added: GHSA-834q-vmvq-2qjx
References
More Juniper Junos Space vulnerabilities
- TI-2014-00408 Unspecified vulnerability in Oracle Java SE 5.0u61, 6u71, 7u51, and 8; JRockit R27.8.1… CVSS 2.0HIGH 10.0
- TI-2014-01931 Unspecified vulnerability in Oracle Java SE 5.0u61, 6u71, 7u51, and 8; JavaFX 2.2.51; and… CVSS 2.0HIGH 10.0
- TI-2014-00436 Unspecified vulnerability in Oracle Java SE 5.0u61, SE 6u71, 7u51, and 8; JRockit R27.8.1… CVSS 2.0HIGH 10.0
- TI-2014-00435 Unspecified vulnerability in Oracle Java SE 6u71, 7u51, and 8, and Java SE Embedded 7u51… CVSS 2.0HIGH 10.0
- TI-2017-07788 Junos Space: Authentication bypass vulnerability CVSS 3.0CRITICAL 9.8
- TI-2014-02744 Unspecified vulnerability in Juniper Junos Space before 13.3R1.8, when the firewall in… CVSS 2.0HIGH 10.0
Sources
- CVE-2025-59975 · CVE Program
- CVE-2025-59975 · NVD
- FIRST EPSS
- GHSA-834q-vmvq-2qjx · GitHub Advisory Database · CC BY 4.0
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