CVE-2025-59969 (GCVE-0-2025-59969)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:25 – Updated: 2026-04-10 18:15
VLAI?
Title
Junos OS Evolved: QFX5000 Series and PTX Series: An attacker sending crafted multicast packets will cause evo-aftmand / evo-pfemand to crash and restart
Summary
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition. This issue affects Junos OS Evolved PTX Series: * All versions before 22.4R3-S8-EVO, * from 23.2 before 23.2R2-S5-EVO, * from 23.4 before 23.4R2-EVO, * from 24.2 before 24.2R2-EVO, * from 24.4 before 24.4R2-EVO. This issue affects Junos OS Evolved on QFX5000 Series: * 22.2-EVO version before 22.2R3-S7-EVO, * 22.4-EVO version before 22.4R3-S7-EVO, * 23.2-EVO versions before 23.2R2-S4-EVO, * 23.4-EVO versions before 23.4R2-S5-EVO, * 24.2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
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:U/V:C/RE:M/U:Amber
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Evolved Affected: 0 , < 22.4R3-S8-EVO (semver)
Affected: 23.2 , < 23.2R2-S5-EVO (semver)
Affected: 23.4 , < 23.4R2-EVO (semver)
Affected: 24.2 , < 24.2R2-EVO (semver)
Affected: 24.4 , < 24.4R2-EVO (semver)
Create a notification for this product.
    Juniper Networks Junos OS Evolved Affected: 22.2 , < 22.2R3-S7-EVO (semver)
Affected: 22.4 , < 22.4R3-S7-EVO (semver)
Affected: 23.2 , < 23.2R2-S4-EVO (semver)
Affected: 23.4 , < 23.4R2-S5-EVO (semver)
Affected: 24.2 , < 24.2R2-S1-EVO (semver)
Affected: 24.4 , < 24.4R1-S3-EVO, 24.4R2-EVO (semver)
Create a notification for this product.
Date Public ?
2026-04-08 16:00
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-59969\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-10T18:14:54.287372Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-10T18:14:59.685Z\"}}], \"cna\": {\"title\": \"Junos OS Evolved: QFX5000 Series and PTX Series: An attacker sending crafted multicast packets will cause evo-aftmand / evo-pfemand to crash and restart\", \"source\": {\"defect\": [\"1808638\", \"1869606\"], \"advisory\": \"JSA103159\", \"discovery\": \"USER\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"ADJACENT_NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}, {\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"USER\", \"baseScore\": 7.1, \"Automatable\": \"YES\", \"attackVector\": \"ADJACENT\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"CONCENTRATED\", \"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:U/V:C/RE:M/U:Amber\", \"providerUrgency\": \"AMBER\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"LOW\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"MODERATE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"modules\": [\"evo-aftmand\"], \"product\": \"Junos OS Evolved\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"22.4R3-S8-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.2\", \"lessThan\": \"23.2R2-S5-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.4\", \"lessThan\": \"23.4R2-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.2\", \"lessThan\": \"24.2R2-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.4\", \"lessThan\": \"24.4R2-EVO\", \"versionType\": \"semver\"}], \"platforms\": [\"PTX Series\"], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Juniper Networks\", \"modules\": [\"evo-pfemand\"], \"product\": \"Junos OS Evolved\", \"versions\": [{\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2R3-S7-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"22.4\", \"lessThan\": \"22.4R3-S7-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.2\", \"lessThan\": \"23.2R2-S4-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.4\", \"lessThan\": \"23.4R2-S5-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.2\", \"lessThan\": \"24.2R2-S1-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.4\", \"lessThan\": \"24.4R1-S3-EVO, 24.4R2-EVO\", \"versionType\": \"semver\"}], \"platforms\": [\"QFX5000 Series\"], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"base64\": false}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-01-14T17:00:00.000Z\", \"value\": \"Initial Publication\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue:\\nFor PTX Series: 22.4R3-S8-EVO, 23.2R2-S5-EVO, 23.4R2-EVO, 24.2R2-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.\\nFor QFX5000 Series: 22.2R3-S7-EVO, 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The following software releases have been updated to resolve this specific issue:\u003cbr\u003eFor PTX Series: 22.4R3-S8-EVO, 23.2R2-S5-EVO, 23.4R2-EVO, 24.2R2-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.\u003cbr\u003eFor QFX5000 Series: 22.2R3-S7-EVO, 22.4R3-S7-EVO, 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.\", \"base64\": false}]}], \"datePublic\": \"2026-04-08T16:00:00.000Z\", \"references\": [{\"url\": \"https://kb.juniper.net/JSA103159\", \"tags\": [\"vendor-advisory\"]}], \"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.\u003cbr\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\\u00a0Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\\n\\nThis issue affects Junos OS Evolved PTX Series:\\n\\n\\n\\n  *  All versions before 22.4R3-S8-EVO,\\n  *  from 23.2 before 23.2R2-S5-EVO,\\n  *  from 23.4 before 23.4R2-EVO,\\n  *  from 24.2 before 24.2R2-EVO,\\n  *  from 24.4 before\\u00a024.4R2-EVO.\\n\\n\\n\\n\\nThis issue affects Junos OS Evolved on QFX5000 Series:\\n\\n\\n\\n  *  22.2-EVO version before 22.2R3-S7-EVO,\\n  *  22.4-EVO version before 22.4R3-S7-EVO,\\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\\n  *  23.4-EVO versions before 23.4R2-S5-EVO, \\n  *  24.2-EVO versions before 24.2R2-S1-EVO,\\n  *  24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\\n\\n\\nThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eevo-pfemand\u003c/span\u003e) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\u003cp\u003eAn attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\u0026nbsp;\u003cspan style=\\\"background-color: rgba(255, 255, 255, 0.85);\\\"\u003eContinued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\u003c/span\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS Evolved PTX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 22.4R3-S8-EVO,\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S5-EVO,\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-EVO,\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2-EVO,\u003c/li\u003e\u003cli\u003efrom 24.4 before\u0026nbsp;\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e24.4R2-EVO.\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS Evolved on QFX5000 Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e22.2-EVO version before 22.2R3-S7-EVO,\u003c/li\u003e\u003cli\u003e22.4-EVO version before 22.4R3-S7-EVO,\u003c/li\u003e\u003cli\u003e23.2-EVO versions before 23.2R2-S4-EVO,\u003c/li\u003e\u003cli\u003e23.4-EVO versions before 23.4R2-S5-EVO, \u003c/li\u003e\u003cli\u003e24.2-EVO versions before 24.2R2-S1-EVO,\u003c/li\u003e\u003cli\u003e24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\u003c/li\u003e\u003c/ul\u003eThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.\u003cbr\u003e\u003cp\u003e\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"Required Configuration for Exposure:\\u00a0\\n\\n\\u00a0 [ protocols mld ]\\nor\\n\\u00a0 [ protocols pim ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eRequired Configuration for Exposure:\u0026nbsp;\u003cbr\u003e\u003cbr\u003e\u003c/span\u003e\u003ctt\u003e\u0026nbsp; [ protocols mld ]\u003cbr\u003e\u003c/tt\u003eor\u003cbr\u003e\u003ctt\u003e\u0026nbsp; [ protocols pim ]\u003cbr\u003e\u003c/tt\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2026-04-09T21:25:32.594Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-59969\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-10T18:15:06.090Z\", \"dateReserved\": \"2025-09-23T18:19:06.955Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2026-04-09T21:25:32.594Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.