CVE-2025-52958 (GCVE-0-2025-52958)
Vulnerability from cvelistv5 – Published: 2025-07-11 14:43 – Updated: 2025-07-11 14:55
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: When route validation is enabled, BGP connection establishment failure causes RPD crash
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-11 14:55 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA100066 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 22.2R3-S6
(semver)
Affected: 22.4 , < 22.4R3-S6 (semver) Affected: 23.2 , < 23.2R2-S3 (semver) Affected: 23.4 , < 23.4R2-S4 (semver) Affected: 24.2 , < 24.2R2 (semver) |
guessed | |
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 22.2R3-S6-EVO
(semver)
Affected: 22.4 , < 22.4R3-S6-EVO (semver) Affected: 23.2 , < 23.2R2-S3-EVO (semver) Affected: 23.4 , < 23.4R2-S4-EVO (semver) Affected: 24.2 , < 24.2R2-EVO (semver) |
guessed |
Date Public
2025-07-09 16:00
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"value": "A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper\u00a0Networks Junos OS and Junos OS Evolved allows an adjacent,\u00a0unauthenticated\u00a0attacker 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.\n\nContinued session establishment failures leads to a sustained DoS condition.\u00a0\n\nThis issue affects Junos OS:\n\n * All versions before 22.2R3-S6, \n * from 22.4 before 22.4R3-S6, \n * from 23.2 before 23.2R2-S3, \n * from 23.4 before 23.4R2-S4, \n * from 24.2 before 24.2R2; \n\n\n\nJunos OS Evolved: \n * All versions before 22.2R3-S6-EVO, \n * from 22.4 before\u00a022.4R3-S6-EVO,\n * from 23.2 before\u00a023.2R2-S3-EVO,\n * from 23.4 before 23.4R2-S4-EVO, \n * from 24.2 before 24.2R2-EVO."
},
{
"lang": "es",
"value": "Una vulnerabilidad de aserci\u00f3n alcanzable en el daemon de protocolo de enrutamiento (rpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado provoque una denegaci\u00f3n de servicio (DoS). En todos los dispositivos Junos OS y Junos OS Evolved, cuando la validaci\u00f3n de ruta est\u00e1 habilitada, una condici\u00f3n poco com\u00fan durante el establecimiento de la sesi\u00f3n inicial de BGP puede provocar un bloqueo y reinicio del rpd. Esto ocurre espec\u00edficamente cuando la solicitud de conexi\u00f3n falla durante un escenario de manejo de errores. Los fallos continuos en el establecimiento de la sesi\u00f3n conducen a una condici\u00f3n de DoS sostenida. Este problema afecta a Junos OS: * Todas las versiones anteriores a 22.2R3-S6, * desde 22.4 hasta 22.4R3-S6, * desde 23.2 hasta 23.2R2-S3, * desde 23.4 hasta 23.4R2-S4, * desde 24.2 hasta 24.2R2; Junos OS Evolved: * Todas las versiones anteriores a 22.2R3-S6-EVO, * desde 22.4 hasta 22.4R3-S6-EVO, * desde 23.2 hasta 23.2R2-S3-EVO, * desde 23.4 hasta 23.4R2-S4-EVO, * desde 24.2 hasta 24.2R2-EVO."
}
],
"id": "CVE-2025-52958",
"lastModified": "2026-06-17T09:37:20.210",
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"redhat_vex": {
"current_release_date": "2025-07-13T15:20:48+00:00",
"cve": "CVE-2025-52958",
"id": "CVE-2025-52958",
"initial_release_date": "2025-07-09T16:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Junos OS and Junos OS Evolved: When route validation is enabled, BGP connection establishment failure causes RPD crash",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-52958.json",
"version": "3"
},
"vulnrichment": {
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"metrics": [
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"id": "CVE-2025-52958",
"options": [
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"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-11T14:55:42.909359Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-07-11T14:55:47.158Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "Junos OS",
"vendor": "Juniper Networks",
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"status": "affected",
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{
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"status": "affected",
"version": "23.2",
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{
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"status": "affected",
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{
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"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
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"lessThan": "22.2R3-S6-EVO",
"status": "affected",
"version": "0",
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{
"lessThan": "22.4R3-S6-EVO",
"status": "affected",
"version": "22.4",
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{
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"status": "affected",
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"status": "affected",
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"configurations": [
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"value": "\u003cp\u003eThe following minimal configuration is required:\u003c/p\u003e \u003ctt\u003e[protocols bgp]\u003cbr\u003e\u003c/tt\u003e\u003ctt\u003e[routing-options validation]\u003c/tt\u003e"
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"value": "The following minimal configuration is required:\n\n [protocols bgp]\n[routing-options validation]"
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"datePublic": "2025-07-09T16:00:00.000Z",
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"value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eA Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper\u0026nbsp;\u003c/span\u003eNetworks Junos OS and Junos OS Evolved allows an adjacent,\u0026nbsp;unauthenticated\u0026nbsp;attacker to cause a Denial of Service (DoS).\u003cp\u003eOn 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.\u003c/p\u003e\u003cp\u003eContinued session establishment failures leads to a sustained DoS condition.\u0026nbsp;\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS:\u003c/p\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cul\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eAll versions before 22.2R3-S6, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 22.4 before 22.4R3-S6, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 23.2 before 23.2R2-S3, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 23.4 before 23.4R2-S4, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 24.2 before 24.2R2; \u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003eJunos OS Evolved: \u003cbr\u003e\u003cul\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eAll versions before 22.2R3-S6-EVO, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 22.4 before\u0026nbsp;22.4R3-S6-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 23.2 before\u0026nbsp;23.2R2-S3-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 23.4 before 23.4R2-S4-EVO, \u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003efrom 24.2 before 24.2R2-EVO.\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003c/span\u003e"
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"value": "A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper\u00a0Networks Junos OS and Junos OS Evolved allows an adjacent,\u00a0unauthenticated\u00a0attacker 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.\n\nContinued session establishment failures leads to a sustained DoS condition.\u00a0\n\nThis issue affects Junos OS:\n\n * All versions before 22.2R3-S6, \n * from 22.4 before 22.4R3-S6, \n * from 23.2 before 23.2R2-S3, \n * from 23.4 before 23.4R2-S4, \n * from 24.2 before 24.2R2; \n\n\n\nJunos OS Evolved: \n * All versions before 22.2R3-S6-EVO, \n * from 22.4 before\u00a022.4R3-S6-EVO,\n * from 23.2 before\u00a023.2R2-S3-EVO,\n * from 23.4 before 23.4R2-S4-EVO, \n * from 24.2 before 24.2R2-EVO."
}
],
"exploits": [
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"supportingMedia": [
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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"metrics": [
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"value": "GENERAL"
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"subConfidentialityImpact": "NONE",
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"valueDensity": "NOT_DEFINED",
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"providerMetadata": {
"dateUpdated": "2025-07-11T14:43:38.431Z",
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}
],
"source": {
"advisory": "JSA100066",
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],
"discovery": "USER"
},
"title": "Junos OS and Junos OS Evolved: When route validation is enabled, BGP connection establishment failure causes RPD crash",
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"dateReserved": "2025-06-23T13:17:37.424Z",
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"state": "PUBLISHED"
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}
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.