CVE-2025-52958
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.
How to fix
- juniper junos22.2 or later
- juniper junos_os_evolved22.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| juniper junos | v < 22.2, 22.2, 22.4, 23.2, 23.4, 24.2 | 22.2 |
| juniper junos_os_evolved | v < 22.2, 22.2, 22.4, 23.2, 23.4, 24.2 | 22.2 |
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