PT-2025-29243 · Juniper Networks · Junos+1

Published 2025-07-09 · Updated 2025-07-11 · CVE-2025-52958

Positive Technologies (AI Summary)

CVSS v4.0

6.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Juniper Networks Junos OS versions prior to 22.2R3-S6 Juniper Networks Junos OS versions 22.4 through 22.4R3-S6 Juniper Networks Junos OS versions 23.2 through 23.2R2-S3 Juniper Networks Junos OS versions 23.4 through 23.4R2-S4 Juniper Networks Junos OS versions 24.2 through 24.2R2 Juniper Networks Junos OS Evolved versions prior to 22.2R3-S6-EVO Juniper Networks Junos OS Evolved versions 22.4 through 22.4R3-S6-EVO Juniper Networks Junos OS Evolved versions 23.2 through 23.2R2-S3-EVO Juniper Networks Junos OS Evolved versions 23.4 through 23.4R2-S4-EVO Juniper Networks Junos OS Evolved versions 24.2 through 24.2R2-EVO

Description: A Reachable Assertion vulnerability exists in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. An unauthenticated, adjacent attacker can exploit this issue to cause a Denial of Service (DoS). When route validation is enabled, a rare condition during Border Gateway Protocol (BGP) initial session establishment, specifically during error handling, can lead to an rpd crash and restart. Repeated session establishment failures can result in a sustained DoS condition.

Recommendations: Update to Junos OS version 22.2R3-S6 or later. Update to Junos OS version 22.4R3-S6 or later. Update to Junos OS version 23.2R2-S3 or later. Update to Junos OS version 23.4R2-S4 or later. Update to Junos OS version 24.2R2 or later. Update to Junos OS Evolved version 22.2R3-S6-EVO or later. Update to Junos OS Evolved version 22.4R3-S6-EVO or later. Update to Junos OS Evolved version 23.2R2-S3-EVO or later. Update to Junos OS Evolved version 23.4R2-S4-EVO or later. Update to Junos OS Evolved version 24.2R2-EVO or later.

Fix

DoS

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

BDU:2025-08751

CVE-2025-52958

Affected Products

Junos

Junos Evolved

References · 6

• https://supportportal.juniper.net/JSA100066 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-52958 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52958 · Security Note
• https://bdu.fstec.ru/vul/2025-08751 · Security Note
• https://t.me/cvetracker/27563 · Telegram Post
• https://twitter.com/CVEnew/status/1943700211378913755 · Twitter Post