CVE-2026-33802 (GCVE-0-2026-33802)

Vulnerability from cvelistv5 – Published: 2026-07-09 21:03 – Updated: 2026-07-09 21:03
VLAI
Title
Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command
Summary
A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS). On EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI 'request' command which will cause complete traffic impact until the system automatically recovers. This issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400: * 23.2R2 versions before 23.2R2-S6, * 23.4 versions before 23.4R2-S8, * 24.2 versions before 24.2R2-S4, * 24.4 versions before 24.4R2-S3, * 25.2 versions before 25.2R2, * 25.4 versions before 25.4R1-S1.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8 (Medium)
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/AU:Y/R:A/RE:M
CWE
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 23.2R2 , < 23.2R2-S6 (custom)
Affected: 23.4 , < 23.4R2-S8 (custom)
Affected: 24.2 , < 24.2R2-S4 (custom)
Affected: 24.4 , < 24.4R2-S3 (custom)
Affected: 25.2 , < 25.2R2 (custom)
Affected: 25.4 , < 25.4R1-S1 (custom)
Create a notification for this product.
Date Public
2026-07-08 16:00
Show details on NVD website
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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "EX4100",
            "EX4300-MP (Multigigabit)",
            "EX2300",
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              "status": "affected",
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              "status": "affected",
              "version": "24.4",
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              "status": "affected",
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      "datePublic": "2026-07-08T16:00:00.000Z",
      "descriptions": [
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              "value": "A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).\u003cbr\u003e\u003cbr\u003e\n\nOn EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI \u0027request\u0027 command which will cause complete traffic impact until the system automatically recovers.\u003cbr\u003e\u003cp\u003e\u003cbr\u003eThis issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:\u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e23.2R2 versions before 23.2R2-S6,\u003c/li\u003e\u003cli\u003e23.4 versions before 23.4R2-S8,\u003c/li\u003e\u003cli\u003e24.2 versions before 24.2R2-S4,\u003c/li\u003e\u003cli\u003e24.4 versions before 24.4R2-S3,\u003c/li\u003e\u003cli\u003e25.2 versions before 25.2R2,\u003c/li\u003e\u003cli\u003e25.4 versions before 25.4R1-S1.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003e\u003cp\u003e\u003c/p\u003e"
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          "value": "A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).\n\n\n\nOn EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI \u0027request\u0027 command which will cause complete traffic impact until the system automatically recovers.\n\nThis issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:\n\n\n  *  23.2R2 versions before 23.2R2-S6,\n  *  23.4 versions before 23.4R2-S8,\n  *  24.2 versions before 24.2R2-S4,\n  *  24.4 versions before 24.4R2-S3,\n  *  25.2 versions before 25.2R2,\n  *  25.4 versions before 25.4R1-S1."
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      "exploits": [
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              "description": "CWE-862 Missing Authorization",
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      "providerMetadata": {
        "dateUpdated": "2026-07-09T21:03:48.353Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
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          "tags": [
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        }
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            }
          ],
          "value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S6, 23.4R2-S8, 24.2R2-S4, 24.4R2-S3, 25.2R2, 25.4R1-S1, 25.4R2, 26.2R1, and all subsequent releases."
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        "advisory": "JSA110077",
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        "discovery": "USER"
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      "title": "Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command",
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        }
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    "assignerShortName": "juniper",
    "cveId": "CVE-2026-33802",
    "datePublished": "2026-07-09T21:03:48.353Z",
    "dateReserved": "2026-03-23T19:46:13.673Z",
    "dateUpdated": "2026-07-09T21:03:48.353Z",
    "state": "PUBLISHED"
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  }
}



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Sightings

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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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