Junos OS: SRX Series: In a NAT64 configuration, receipt of a specific, malformed ICMPv6 packet will cause the srxpfe process to crash and restart._CVE-2026-33790

{
    "lastseen": "",
    "description": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an attacker sending a specific, malformed ICMPv6 packet to cause the srxpfe process to crash and restart.\u00a0Continued receipt and processing of these packets will repeatedly crash the srxpfe process and sustain the Denial of Service (DoS) condition.\n\nDuring NAT64 translation, receipt of a specific, malformed ICMPv6 packet destined to the device will cause the srxpfe process to crash and restart.\n\nThis issue cannot be triggered using IPv4 nor other IPv6 traffic.\n\n\n\nThis issue affects Junos OS on SRX Series:\n  *  all versions before 21.2R3-S10,\n  *  all versions of 21.3,\n  *  from 21.4 before 21.4R3-S12,\n  *  all versions of 22.1,\n  *  from 22.2 before 22.2R3-S8,\n  *  all versions of 22.4,\n  *  from 22.4 before 22.4R3-S9,\n  *  from 23.2 before 23.2R2-S6,\n  *  from 23.4 before 23.4R2-S7,\n  *  from 24.2 before 24.2R2-S3,\n  *  from 24.4 before 24.4R2-S3,\n  *  from 25.2 before 25.2R1-S2, 25.2R2.",
    "published": "2026-04-09T21:38:08.493Z",
    "modified": "2026-04-10T13:56:16.375Z",
    "type": "cve",
    "title": "Junos OS: SRX Series: In a NAT64 configuration, receipt of a specific, malformed ICMPv6 packet will cause the srxpfe process to crash and restart.",
    "source": "juniper",
    "references": "https://kb.juniper.net/JSA107874",
    "id": "CVE-2026-33790",
    "bulletinFamily": "",
    "cwe": [
        "CWE-754"
    ],
    "cvelist": null,
    "sourceData": "Juniper Networks Junos OS 0\nJuniper Networks Junos OS 21.4\nJuniper Networks Junos OS 22.2\nJuniper Networks Junos OS 22.4\nJuniper Networks Junos OS 23.2\nJuniper Networks Junos OS 23.4\nJuniper Networks Junos OS 24.2\nJuniper Networks Junos OS 24.4\nJuniper Networks Junos OS 25.2\nJuniper Networks Junos OS 21.3\nJuniper Networks Junos OS 22.1\nJuniper Networks Junos OS 22.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Junos OS",
    "version": "0",
    "vendor": "Juniper Networks",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}