CVE-2025-30660 (GCVE-0-2025-30660)

Vulnerability from cvelistv5 – Published: 2025-04-09 20:05 – Updated: 2025-04-09 20:29
VLAI?
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).When processing a high rate of specific GRE traffic destined to the device, the respective PFE will hang causing traffic forwarding to stop. When this issue occurs the following logs can be observed: <fpc #> MQSS(0): LI-3: Received a parcel with more than 512B accompanying data CHASSISD_FPC_ASIC_ERROR: ASIC Error detected <...> This issue affects Junos OS: * all versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S8, * 22.2 versions before 22.2R3-S4, * 22.4 versions before 22.4R3-S5, * 23.2 versions before 23.2R2-S2, * 23.4 versions before 23.4R2.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 0 , < 21.2R3-S9 (semver)
Affected: 21.4 , < 21.4R3-S8 (semver)
Affected: 22.2 , < 22.2R3-S4 (semver)
Affected: 22.4 , < 22.4R3-S5 (semver)
Affected: 23.2 , < 23.2R2-S2 (semver)
Affected: 23.4 , < 23.4R2 (semver)
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\"workarounds\": [{\"lang\": \"en\", \"value\": \"There are no known workarounds for this issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"There are no known workarounds for this issue.\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).When processing a high rate of specific GRE traffic destined to the device, the respective PFE will hang causing traffic forwarding to stop. \\n\\n\\n\\nWhen this issue occurs the following logs can be observed:\\n\\n \u003cfpc #\u003e MQSS(0): LI-3: Received a parcel with more than 512B\\u00a0accompanying data \\nCHASSISD_FPC_ASIC_ERROR: ASIC Error detected \u003c...\u003e\\n\\n\\nThis issue affects Junos OS:\\n\\n  *  all versions before 21.2R3-S9,\\n  *  21.4 versions before 21.4R3-S8,\\n  *  22.2 versions before 22.2R3-S4,\\n  *  22.4 versions before 22.4R3-S5,\\n  *  23.2 versions before 23.2R2-S2,\\n  *  23.4 versions before 23.4R2.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\u003cp\u003eWhen processing a high rate of specific GRE traffic destined to the device, the respective P\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eFE will hang causing traffic forwarding to stop. \u003c/span\u003e\\n\\n\u003c/p\u003e\u003cp\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eWhen this issue occurs the following logs can be observed:\u003c/span\u003e\u003c/p\u003e \u003ctt\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e\u0026lt;fpc #\u0026gt; MQSS(0): LI-3: Received a parcel with more than 512B\u0026nbsp;accompanying data \u003cbr\u003e\u003c/span\u003e\u003c/tt\u003e\u003ctt\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eCHASSISD_FPC_ASIC_ERROR: ASIC Error detected \u0026lt;...\u0026gt;\u003c/span\u003e\u003c/tt\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS:\u003c/p\u003e\u003cul\u003e\u003cli\u003eall versions before 21.2R3-S9,\u003c/li\u003e\u003cli\u003e21.4 versions before 21.4R3-S8,\u003c/li\u003e\u003cli\u003e22.2 versions before 22.2R3-S4,\u003c/li\u003e\u003cli\u003e22.4 versions before 22.4R3-S5,\u003c/li\u003e\u003cli\u003e23.2 versions before 23.2R2-S2,\u003c/li\u003e\u003cli\u003e23.4 versions before 23.4R2.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-754\", \"description\": \"CWE-754 Improper Check for Unusual or Exceptional Conditions\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2025-04-09T20:05:25.345Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-30660\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-09T20:29:59.919Z\", \"dateReserved\": \"2025-03-24T19:34:11.323Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2025-04-09T20:05:25.345Z\", \"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 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.



Detection rules are retrieved from Rulezet.