CVE-2025-52958
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-11

Last updated on: 2025-07-15

Assigner: Juniper Networks, Inc.

Description
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).On all Junos OS and Junos OS Evolved devices, when route validation is enabled, a rare condition during BGP initial session establishment can lead to an rpd crash and restart. This occurs specifically when the connection request fails during error-handling scenario. Continued session establishment failures leads to a sustained DoS condition.  This issue affects Junos OS: * All versions before 22.2R3-S6, * from 22.4 before 22.4R3-S6, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2; Junos OS Evolved: * All versions before 22.2R3-S6-EVO, * from 22.4 before 22.4R3-S6-EVO, * from 23.2 before 23.2R2-S3-EVO, * from 23.4 before 23.4R2-S4-EVO, * from 24.2 before 24.2R2-EVO.
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Meta Information
Published
2025-07-11
Last Modified
2025-07-15
Generated
2026-05-07
AI Q&A
2025-07-11
EPSS Evaluated
2026-05-05
NVD
CVE-2025-52958
EUVD
EUVD-2025-21162
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
juniper junos_os_evolved *
juniper junos_os *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-617 The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a Reachable Assertion issue in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. It allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS) by triggering a rare condition during BGP initial session establishment when route validation is enabled. Specifically, if the connection request fails during an error-handling scenario, the rpd process crashes and restarts. Repeated failures lead to a sustained DoS condition.


How can this vulnerability impact me? :

The vulnerability can cause a Denial of Service (DoS) on affected Junos OS and Junos OS Evolved devices. This means that the routing protocol daemon (rpd) can crash and restart repeatedly, disrupting network routing and potentially causing network outages or degraded network performance.


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