CVE-2025-59962
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-09

Last updated on: 2025-10-14

Assigner: Juniper Networks, Inc.

Description
An Access of Uninitialized Pointer vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved with BGP sharding configured allows an attacker triggering indirect next-hop updates, along with timing outside the attacker's control, to cause rpd to crash and restart, leading to a Denial of Service (DoS). With BGP sharding enabled, triggering route resolution of an indirect next-hop (e.g., an IGP route change over which a BGP route gets resolved), may cause rpd to crash and restart. An attacker causing continuous IGP route churn, resulting in repeated route re-resolution, will increase the likelihood of triggering this issue, leading to a potentially extended DoS condition. This issue affects: Junos OS: * all versions before 21.4R3-S6,  * from 22.1 before 22.1R3-S6,  * from 22.2 before 22.2R3-S3,  * from 22.3 before 22.3R3-S3,  * from 22.4 before 22.4R3,  * from 23.2 before 23.2R2;  Junos OS Evolved:  * all versions before 22.3R3-S3-EVO,  * from 22.4 before 22.4R3-EVO,  * from 23.2 before 23.2R2-EVO. Versions before Junos OS 21.3R1 and Junos OS Evolved 21.3R1-EVO are unaffected by this issue.
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Meta Information
Published
2025-10-09
Last Modified
2025-10-14
Generated
2026-05-07
AI Q&A
2025-10-09
EPSS Evaluated
2026-05-05
NVD
CVE-2025-59962
EUVD
EUVD-2025-33398
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-824 The product accesses or uses a pointer that has not been initialized.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is an Access of Uninitialized Pointer issue in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved when BGP sharding is configured. It allows an attacker to trigger indirect next-hop updates combined with timing conditions outside their control, causing the rpd process to crash and restart. This leads to a Denial of Service (DoS) condition. Specifically, continuous IGP route changes can cause repeated route re-resolution, increasing the chance of triggering the crash.


How can this vulnerability impact me? :

The vulnerability can cause the routing protocol daemon (rpd) to crash and restart repeatedly, resulting in a Denial of Service (DoS). This can disrupt network routing and availability, potentially causing network outages or degraded network performance.


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