CVE-2025-30655

Routing daemon crash via resource-intensive BGP query

Published Apr 9, 2025 · Updated Apr 9, 2025

Improper condition handling in Juniper Networks Junos OS and Junos OS Evolved allows local users to crash and restart rpd. Processing a specific show bgp neighbor CLI command drives rpd CPU utilization upward until the daemon crashes and restarts. A low-privileged CLI account can reach the flaw only when BGP RIB sharding and update-threading are enabled; repeated commands sustain the service interruption.

CVSS severity6.8
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper condition handling in Juniper Networks Junos OS and Junos OS Evolved allows local users to crash and restart rpd. Processing a specific show bgp neighbor CLI command drives rpd CPU utilization upward until the daemon crashes and restarts. A low-privileged CLI account can reach the flaw only when BGP RIB sharding and update-threading are enabled; repeated commands sustain the service interruption.

The record

CVE
CVE-2025-30655
Published
Apr 9, 2025
Updated
Apr 9, 2025
Vendor
Juniper Networks
Product
Junos OS Evolved
Classifications
CWE-754, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <21.2R3-S9-EVO
  2. Affected versionversion=21.4-EVO <21.4R3-S8-EVO
  3. Affected versionversion=22.2-EVO <22.2R3-S6-EVO
  4. Affected versionversion=22.4-EVO <22.4R3-S2-EVO
  5. Affected versionversion=23.2-EVO <23.2R2-S3-EVO
  6. Affected versionversion=23.4-EVO <23.4R2-EVO

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OS Evolvedversion=0 <21.2R3-S9-EVO; version=21.4-EVO <21.4R3-S8-EVO; version=22.2-EVO <22.2R3-S6-EVO; version=22.4-EVO <22.4R3-S2-EVO; version=23.2-EVO <23.2R2-S3-EVO; version=23.4-EVO <23.4R2-EVO
Juniper Networks · Junos OSversion=0 <21.2R3-S9; version=21.4 <21.4R3-S8; version=22.2 <22.2R3-S6; version=22.4 <22.4R3-S2; version=23.2 <23.2R2-S3; version=23.4 <23.4R2

Published CVSS scores

6.8Juniper NetworksCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5Juniper NetworksCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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