CVE-2025-52946 (GCVE-0-2025-52946)
Vulnerability from cvelistv5
Published
2025-07-11 14:39
Modified
2025-07-11 15:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an attacker sending a BGP update with a specifically malformed AS PATH to cause rpd to crash, resulting in a Denial of Service (DoS). Continuous receipt of the malformed AS PATH attribute will cause a sustained DoS condition.
On all Junos OS and Junos OS Evolved platforms, the rpd process will crash and restart when a specifically malformed AS PATH is received within a BGP update and traceoptions are enabled.
This issue only affects systems with BGP traceoptions enabled and requires a BGP session to be already established. Systems without BGP traceoptions enabled are not impacted by this issue.
This issue affects:
Junos OS:
* All versions before 21.2R3-S9,
* all versions of 21.4,
* from 22.2 before 22.2R3-S6,
* from 22.4 before 22.4R3-S5,
* 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 22.4R3-S5-EVO,
* from 23.2-EVO before 23.2R2-S3-EVO,
* from 23.4-EVO before 23.4R2-S4-EVO,
* from 24.2-EVO before 24.2R2-EVO.
This is a more complete fix for previously published CVE-2024-39549 (JSA83011).
References
| ► | URL | Tags | |||
|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ► | Juniper Networks | Junos OS |
Version: 0 ≤ Version: 21.4 Version: 22.2 ≤ Version: 22.4 ≤ Version: 23.2 ≤ Version: 23.4 ≤ Version: 24.2 ≤ |
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Systems without BGP traceoptions enabled are not impacted by this issue.\\n\\n\\n\\nThis issue affects:\\n\\n\\u00a0Junos OS:\\n\\n\\n\\n * All versions before 21.2R3-S9,\\u00a0\\n * all versions of 21.4,\\n * from 22.2 before 22.2R3-S6,\\u00a0\\n * from 22.4 before 22.4R3-S5,\\u00a0\\n * from 23.2 before 23.2R2-S3,\\u00a0\\n * from 23.4 before 23.4R2-S4,\\u00a0\\n * from 24.2 before 24.2R2;\\u00a0\\n\\n\\n\\n\\nJunos OS Evolved:\\u00a0\\n\\n\\n\\n * All versions before 22.4R3-S5-EVO,\\u00a0\\n * from 23.2-EVO before 23.2R2-S3-EVO,\\u00a0\\n * from 23.4-EVO before 23.4R2-S4-EVO,\\u00a0\\n * from 24.2-EVO before 24.2R2-EVO.\\n\\n\\n\\n\\n\\n\\n\\nThis is a more complete fix for previously published CVE-2024-39549 (JSA83011).\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eA Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an attacker sending a BGP update with a specifically malformed AS PATH to cause rpd to crash, resulting in a Denial of Service (DoS). Continuous receipt of the malformed AS PATH attribute will cause a sustained DoS condition.\u003cbr\u003e\u003cbr\u003eOn all Junos OS and Junos OS Evolved platforms, the rpd process will crash and restart when a specifically malformed AS PATH is received within a BGP update and traceoptions are enabled.\u003c/p\u003e\u003cp\u003eThis issue only affects systems with BGP traceoptions enabled and requires a BGP session to be already established. Systems without BGP traceoptions enabled are not impacted by this issue.\u003cbr\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003e\u0026nbsp;Junos OS:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S9,\u0026nbsp;\u003c/li\u003e\u003cli\u003eall versions of 21.4,\u003c/li\u003e\u003cli\u003efrom 22.2 before 22.2R3-S6,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S5,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S4,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2;\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJunos OS Evolved:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 22.4R3-S5-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2-EVO before 23.2R2-S3-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4-EVO before 23.4R2-S4-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2-EVO before 24.2R2-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\\n\\n\u003cbr\u003eThis is a more complete fix for previously published CVE-2024-39549 (JSA83011).\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"One of the following traceoptions configurations, either at the top level, under [logical-systems], or [routing-instances], is required to be potentially exposed to this issue:\\n\\n[protocols bgp traceoptions]\\n[protocols bgp group \u003cgroup-name\u003e traceoptions]\\n[protocols bgp group \u003cgroup-name\u003e neighbor \u003caddress\u003e traceoptions]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"One of the following traceoptions configurations, either at the top level, under [logical-systems], or [routing-instances], is required to be potentially exposed to this issue:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[protocols bgp traceoptions]\u003cbr\u003e[protocols bgp group \u0026lt;group-name\u0026gt; traceoptions]\u003cbr\u003e[protocols bgp group \u0026lt;group-name\u0026gt; neighbor \u0026lt;address\u0026gt; traceoptions]\u003c/tt\u003e\\n\\n\u003cbr\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2025-07-11T14:39:59.014Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-52946\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-11T15:25:30.605Z\", \"dateReserved\": \"2025-06-23T13:16:01.408Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2025-07-11T14:39:59.014Z\", \"assignerShortName\": \"juniper\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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