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"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"state": "PUBLISHED",
"assignerShortName": "juniper",
"dateReserved": "2025-06-23T13:16:01.409Z",
"datePublished": "2025-07-11T15:04:55.140Z",
"dateUpdated": "2025-07-11T20:11:26.659Z"
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"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
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],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "21.2R3-S9",
"status": "affected",
"version": "0",
"versionType": "semver"
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{
"lessThan": "21.4R3-S11",
"status": "affected",
"version": "21.4",
"versionType": "semver"
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{
"lessThan": "22.2R3-S7",
"status": "affected",
"version": "22.2",
"versionType": "semver"
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{
"lessThan": "22.4R3-S7",
"status": "affected",
"version": "22.4",
"versionType": "semver"
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{
"lessThan": "23.2R2-S4",
"status": "affected",
"version": "23.2",
"versionType": "semver"
},
{
"lessThan": "23.4R2-S4",
"status": "affected",
"version": "23.4",
"versionType": "semver"
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{
"lessThan": "24.2R2",
"status": "affected",
"version": "24.2",
"versionType": "semver"
},
{
"lessThan": "24.4R1-S3, 24.4R2",
"status": "affected",
"version": "24.4",
"versionType": "semver"
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"defaultStatus": "unaffected",
"modules": [
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"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
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"lessThan": "22.2R3-S7-EVO",
"status": "affected",
"version": "0",
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"status": "affected",
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"versionType": "semver"
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"lessThan": "24.4R1-S3-EVO, 24.4R2-EVO",
"status": "affected",
"version": "24.4-EVO",
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}
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}
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"value": "One of the following minimal configurations is necessary to be exposed to this issue:
[protocols bgp group <group-name> neighbor <peer-ip-address> family inet6-vpn unicast]
or
[protocols bgp group <group-name> family inet6-vpn unicast]
or
[protocols bgp family inet6-vpn unicast]"
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"value": "One of the following minimal configurations is necessary to be exposed to this issue:\n [protocols bgp group neighbor family inet6-vpn unicast]\nor\n [protocols bgp group family inet6-vpn unicast]\nor\n [protocols bgp family inet6-vpn unicast]"
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"datePublic": "2025-07-09T16:00:00.000Z",
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"value": "An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a valid BGP UPDATE packet to cause a BGP session reset, resulting in a Denial of Service (DoS).
Continuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects iBGP and eBGP and both IPv4 and IPv6 are affected by this vulnerability.
This issue affects Junos OS:
- All versions before 21.2R3-S9,
- from 21.4 before 21.4R3-S11,
- from 22.2 before 22.2R3-S7,
- from 22.4 before 22.4R3-S7,
- from 23.2 before 23.2R2-S4,
- from 23.4 before 23.4R2-S4,
- from 24.2 before 24.2R2,
- from 24.4 before 24.4R1-S3, 24.4R2
Junos OS Evolved:- All versions before 22.2R3-S7-EVO,
- from 22.4-EVO before 22.4R3-S7-EVO,
- from 23.2-EVO before 23.2R2-S4-EVO,
- from 23.4-EVO before 23.4R2-S4-EVO,
- from 24.2-EVO before 24.2R2-EVO,
- from 24.4-EVO before 24.4R1-S3-EVO, 24.4R2-EVO.
"
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"value": "An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a valid BGP UPDATE packet to cause a BGP session reset, resulting in a Denial of Service (DoS). \n\nContinuous receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects iBGP and eBGP and both IPv4 and IPv6 are affected by this vulnerability.\n\nThis issue affects Junos OS:\n\n\n * All versions before 21.2R3-S9,\n * from 21.4 before 21.4R3-S11,\n * from 22.2 before 22.2R3-S7,\n * from 22.4 before 22.4R3-S7,\n * from 23.2 before 23.2R2-S4,\n * from 23.4 before 23.4R2-S4,\n * from 24.2 before 24.2R2,\n * from 24.4 before 24.4R1-S3, 24.4R2\n\n\nJunos OS Evolved:\n\n\n\n * All versions before 22.2R3-S7-EVO,\n * from 22.4-EVO before 22.4R3-S7-EVO,\n * from 23.2-EVO before 23.2R2-S4-EVO,\n * from 23.4-EVO before 23.4R2-S4-EVO,\n * from 24.2-EVO before 24.2R2-EVO,\n * from 24.4-EVO before 24.4R1-S3-EVO, 24.4R2-EVO."
}
],
"exploits": [
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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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"attackVector": "ADJACENT_NETWORK",
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"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.1,
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"privilegesRequired": "NONE",
"providerUrgency": "AMBER",
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"subConfidentialityImpact": "NONE",
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"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M/U:Amber",
"version": "4.0",
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"vulnerabilityResponseEffort": "MODERATE"
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"problemTypes": [
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"descriptions": [
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"lang": "en",
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"providerMetadata": {
"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"dateUpdated": "2025-07-11T15:04:55.140Z"
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"references": [
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"tags": [
"vendor-advisory"
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"url": "https://supportportal.juniper.net/JSA100059"
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{
"tags": [
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"url": "https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/task/routing-protocol-bgp-security-configuring.html"
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"solutions": [
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"lang": "en",
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"value": "The following software releases have been updated to resolve this specific issue:
Junos OS: 21.2R3-S9, 21.4R3-S11, 22.2R3-S7, 22.4R3-S7, 23.2R2-S4, 23.4R2-S4, 24.2R2, 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.
Junos OS Evolved: 22.2R3-S7-EVO, 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.
"
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}
],
"source": {
"advisory": "JSA100059",
"defect": [
"1855477"
],
"discovery": "USER"
},
"title": "Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker sending a valid BGP UPDATE packet forces a BGP session reset",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
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"timestamp": "2025-07-11T20:11:16.564518Z",
"id": "CVE-2025-52953",
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"version": "2.0.3"
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"title": "CISA ADP Vulnrichment",
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