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

Vulnerability from cvelistv5 – Published: 2026-04-09 21:25 – Updated: 2026-04-09 21:25
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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              "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"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2025-59969\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2026-04-09T22:16:24.100\",\"lastModified\":\"2026-04-09T22:16:24.100\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:M/U:Amber\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"LOW\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"YES\",\"Recovery\":\"USER\",\"valueDensity\":\"CONCENTRATED\",\"vulnerabilityResponseEffort\":\"MODERATE\",\"providerUrgency\":\"AMBER\"}}],\"cvssMetricV31\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"references\":[{\"url\":\"https://kb.juniper.net/JSA103159\",\"source\":\"sirt@juniper.net\"}]}}"
  }
}


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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.