{
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              "content": {
                "id": "CVE-2025-52948",
                "options": [
                  {
                    "Exploitation": "none"
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                  {
                    "Automatable": "no"
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                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-11T15:06:42.389399Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          "dateUpdated": "2025-07-11T15:06:47.179Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "defaultStatus": "unaffected",
          "product": "Junos OS",
          "vendor": "Juniper Networks",
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            {
              "lessThan": "21.2R3-S9",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThan": "21.4R3-S10",
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              "version": "21.4",
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              "lessThan": "22.2R3-S6",
              "status": "affected",
              "version": "22.2",
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              "lessThan": "22.4R3-S7",
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              "lessThan": "23.2R2-S3",
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              "version": "23.2",
              "versionType": "semver"
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            {
              "lessThan": "23.4R2-S3",
              "status": "affected",
              "version": "23.4",
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              "lessThan": "24.2R1-S1, 24.2R2",
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              "version": "24.2",
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      "configurations": [
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          "supportingMedia": [
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              "value": "BPF is used by applications such as \u0027tcpdump\u0027, enabled in Junos via packet-capture sampling:\u003cbr\u003e\u003cbr\u003e\n\n\u003ctt\u003e[forwarding-options\u0026nbsp;packet-capture file ...]\u003cbr\u003e\u003cbr\u003e[firewall filter \u0026lt;name\u0026gt; term \u0026lt;name\u0026gt; then sample]\u003cbr\u003e\u003cbr\u003e[interfaces \u0026lt;interface\u0026gt; unit \u0026lt;n\u0026gt; family inet filter input \u0026lt;name\u0026gt;]\u003cbr\u003e\n\n[interfaces \u0026lt;interface\u0026gt; unit \u0026lt;n\u0026gt; family inet filter output \u0026lt;name\u0026gt;]\u003cbr\u003e\u003cbr\u003e\u003c/tt\u003eor via the \u0027monitor traffic\u0027 command. For example:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003euser@junos\u0026gt; monitor traffic interface \u0026lt;name\u0026gt;\u003c/tt\u003e"
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          "value": "BPF is used by applications such as \u0027tcpdump\u0027, enabled in Junos via packet-capture sampling:\n\n\n\n[forwarding-options\u00a0packet-capture file ...]\n\n[firewall filter \u003cname\u003e term \u003cname\u003e then sample]\n\n[interfaces \u003cinterface\u003e unit \u003cn\u003e family inet filter input \u003cname\u003e]\n\n\n[interfaces \u003cinterface\u003e unit \u003cn\u003e family inet filter output \u003cname\u003e]\n\nor via the \u0027monitor traffic\u0027 command. For example:\n\nuser@junos\u003e monitor traffic interface \u003cname\u003e"
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      "datePublic": "2025-07-09T16:00:00.000Z",
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              "value": "An Improper Handling of Exceptional Conditions vulnerability in Berkeley Packet Filter (BPF) processing of Juniper Networks Junos OS allows an attacker, in rare cases, sending specific, unknown traffic patterns to cause the FPC and system to crash and restart.\u003cbr\u003e\u003cbr\u003eBPF provides a raw interface to data link layers in a protocol independent fashion. Internally within the Junos kernel, due to a rare timing issue (race condition), when a BPF instance is cloned, the newly created interface causes an internal structure leakage, leading to a system crash. The precise content and timing of the traffic patterns is indeterminate, but has been seen in a lab environment multiple times.\u003cbr\u003e\u003cbr\u003eThis issue is more likely to occur when packet capturing is enabled.\u0026nbsp; See required configuration below.\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Junos OS:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eall versions before 21.2R3-S9,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 21.4 before 21.4R3-S10,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.2 before 22.2R3-S6,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S7,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R1-S1, 24.2R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e"
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          "value": "An Improper Handling of Exceptional Conditions vulnerability in Berkeley Packet Filter (BPF) processing of Juniper Networks Junos OS allows an attacker, in rare cases, sending specific, unknown traffic patterns to cause the FPC and system to crash and restart.\n\nBPF provides a raw interface to data link layers in a protocol independent fashion. Internally within the Junos kernel, due to a rare timing issue (race condition), when a BPF instance is cloned, the newly created interface causes an internal structure leakage, leading to a system crash. The precise content and timing of the traffic patterns is indeterminate, but has been seen in a lab environment multiple times.\n\nThis issue is more likely to occur when packet capturing is enabled.\u00a0 See required configuration below.\n\nThis issue affects Junos OS:\u00a0\n\n\n\n  *  all versions before 21.2R3-S9,\u00a0\n  *  from 21.4 before 21.4R3-S10,\u00a0\n  *  from 22.2 before 22.2R3-S6,\u00a0\n  *  from 22.4 before 22.4R3-S7,\u00a0\n  *  from 23.2 before 23.2R2-S3,\u00a0\n  *  from 23.4 before 23.4R2-S3,\u00a0\n  *  from 24.2 before 24.2R1-S1, 24.2R2."
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
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              "cweId": "CWE-755",
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      "providerMetadata": {
        "dateUpdated": "2025-07-23T14:57:37.021Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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          "tags": [
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          "url": "https://supportportal.juniper.net/JSA100052"
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        {
          "tags": [
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          "url": "https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/topic-map/analyze-network-traffic-by-using-packet-capture.html"
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              "value": "The following software releases have been updated to resolve this specific issue: 21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S7, 23.2R2-S3, 23.4R2-S3, 24.2R1-S1, 24.2R2, 24.4R1, and all subsequent releases."
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          "value": "The following software releases have been updated to resolve this specific issue: 21.2R3-S9, 21.4R3-S10, 22.2R3-S6, 22.4R3-S7, 23.2R2-S3, 23.4R2-S3, 24.2R1-S1, 24.2R2, 24.4R1, and all subsequent releases."
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      "source": {
        "advisory": "JSA100052",
        "defect": [
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        "discovery": "INTERNAL"
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          "time": "2025-07-09T16:00:00.000Z",
          "value": "Initial Publication"
        },
        {
          "lang": "en",
          "time": "2025-07-18T16:00:00.000Z",
          "value": "Corrected vulnerable \u0027monitor\u0027 command from \u0027monitor interface\u0027 to \u0027monitor traffic\u0027"
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          "lang": "en",
          "time": "2025-07-23T16:00:00.000Z",
          "value": "Added workaround of avoiding the execution of the \u0027monitor traffic\u0027 command"
        }
      ],
      "title": "Junos OS: Specific unknown traffic pattern causes FPC and system to crash when packet capturing is enabled",
      "workarounds": [
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              "value": "Avoid execution of the \u0027monitor traffic interface\u0027 command on production systems."
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    "assignerShortName": "juniper",
    "cveId": "CVE-2025-52948",
    "datePublished": "2025-07-11T14:40:31.197Z",
    "dateReserved": "2025-06-23T13:16:01.408Z",
    "dateUpdated": "2025-07-23T14:57:37.021Z",
    "state": "PUBLISHED"
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}