FKIE_CVE-2025-52986
Vulnerability from fkie_nvd - Published: 2025-07-11 16:15 - Updated: 2026-01-23 17:10
Severity ?
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.
When RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.
The leak can be monitored with the CLI command:
show task memory detail | match task_shard_mgmt_cookie
where the allocated memory in bytes can be seen to continuously increase with each exploitation.
This issue affects:
Junos OS:
* all versions before 21.2R3-S9,
* 21.4 versions before 21.4R3-S11,
* 22.2 versions before 22.2R3-S7,
* 22.4 versions before 22.4R3-S7,
* 23.2 versions before 23.2R2-S4,
* 23.4 versions before 23.4R2-S4,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
* all versions before 22.2R3-S7-EVO
* 22.4-EVO versions before 22.4R3-S7-EVO,
* 23.2-EVO versions before 23.2R2-S4-EVO,
* 23.4-EVO versions before 23.4R2-S4-EVO,
* 24.2-EVO versions before 24.2R2-EVO,
* 24.4-EVO versions before 24.4R2-EVO.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://supportportal.juniper.net/JSA100092 | Vendor Advisory |
Impacted products
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related \u0027show\u0027 commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n * all versions before 21.2R3-S9,\n * 21.4 versions before 21.4R3-S11,\n * 22.2 versions before 22.2R3-S7,\n * 22.4 versions before 22.4R3-S7,\n * 23.2 versions before 23.2R2-S4,\u00a0\n * 23.4 versions before 23.4R2-S4,\n * 24.2 versions before 24.2R2,\n * 24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n * all versions before 22.2R3-S7-EVO\n * 22.4-EVO versions before 22.4R3-S7-EVO,\n * 23.2-EVO versions before 23.2R2-S4-EVO,\n * 23.4-EVO versions before 23.4R2-S4-EVO,\n * 24.2-EVO versions before 24.2R2-EVO,\u00a0\n * 24.4-EVO versions before 24.4R2-EVO."
},
{
"lang": "es",
"value": "Una vulnerabilidad de falta de liberaci\u00f3n de memoria tras el tiempo de vida \u00fatil efectivo en el daemon del protocolo de enrutamiento (rpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un usuario local con pocos privilegios afecte la disponibilidad del dispositivo. Cuando se habilita la fragmentaci\u00f3n RIB y un usuario ejecuta uno de los varios comandos \"show\" relacionados con el enrutamiento, se pierde cierta cantidad de memoria. Cuando se consume toda la memoria disponible, rpd se bloquea y se reinicia. La p\u00e9rdida se puede monitorizar con el comando de la CLI: show task memory detail | match task_shard_mgmt_cookie, donde se observa que la memoria asignada en bytes aumenta continuamente con cada explotaci\u00f3n. Este problema afecta a: Junos OS: * todas las versiones anteriores a 21.2R3-S9, * versiones 21.4 anteriores a 21.4R3-S11, * versiones 22.2 anteriores a 22.2R3-S7, * versiones 22.4 anteriores a 22.4R3-S7, * versiones 23.2 anteriores a 23.2R2-S4, * versiones 23.4 anteriores a 23.4R2-S4, * versiones 24.2 anteriores a 24.2R2, * versiones 24.4 anteriores a 24.4R1-S2, 24.4R2; Junos OS Evolved: * todas las versiones anteriores a 22.2R3-S7-EVO * versiones 22.4-EVO anteriores a 22.4R3-S7-EVO, * versiones 23.2-EVO anteriores a 23.2R2-S4-EVO, * versiones 23.4-EVO anteriores a 23.4R2-S4-EVO, * versiones 24.2-EVO anteriores a 24.2R2-EVO, * versiones 24.4-EVO anteriores a 24.4R2-EVO."
}
],
"id": "CVE-2025-52986",
"lastModified": "2026-01-23T17:10:47.450",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "sirt@juniper.net",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "YES",
"Recovery": "AUTOMATIC",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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:Y/R:A/V:X/RE:M/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "MODERATE"
},
"source": "sirt@juniper.net",
"type": "Secondary"
}
]
},
"published": "2025-07-11T16:15:26.020",
"references": [
{
"source": "sirt@juniper.net",
"tags": [
"Vendor Advisory"
],
"url": "https://supportportal.juniper.net/JSA100092"
}
],
"sourceIdentifier": "sirt@juniper.net",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"source": "sirt@juniper.net",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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