NVD

CVE-2025-52958 Detail

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

Nist CVSS score does not match with CNA score

CNA: Juniper Networks, Inc.

CVSS-B 6.0 MEDIUM

Vector: CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A/RE:M/U:Green

CVSS 3.x Severity and Vector Strings:

CNA: Juniper Networks, Inc.

Base Score: 5.3 MEDIUM

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://supportportal.juniper.net/JSA100066	Juniper Networks, Inc.	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-617	Reachable Assertion	Juniper Networks, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Initial Analysis by NIST 1/23/2026 2:37:09 PM

Action

Type

Old Value

New Value

Added

CPE Configuration

Record truncated, showing 2048 of 5719 characters.
View Entire Change Record

OR
          *cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.4:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s1:*:*:*:*:*:*

Added

Reference Type

Juniper Networks, Inc.: https://supportportal.juniper.net/JSA100066 Types: Vendor Advisory

New CVE Received from Juniper Networks, Inc. 7/11/2025 11:15:26 AM

Action	Type	New Value
Added	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.
Added	CVSS V4.0	AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:M/U:Green
Added	CVSS V3.1	AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CWE	CWE-617
Added	Reference	https://supportportal.juniper.net/JSA100066

Quick Info

CVE Dictionary Entry:
CVE-2025-52958
NVD Published Date:
07/11/2025
NVD Last Modified:
01/23/2026
Source:
Juniper Networks, Inc.

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