Vulnerability-Lookup

FKIE_CVE-2025-52961

Vulnerability from fkie_nvd - Published: 2025-10-09 16:15 - Updated: 2026-10-08 13:10

Severity

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management (CFM) daemon and the Connectivity Fault Management Manager (cfmman) of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). An attacker on an adjacent device sending specific valid traffic can cause cfmd to spike the CPU to 100% and cfmman's memory to leak, eventually to cause the FPC crash and restart. Continued receipt and processes of these specific valid packets will sustain the Denial of Service (DoS) condition. An indicator of compromise is to watch for an increase in cfmman memory rising over time by issuing the following command and evaluating the RSS number. If the RSS is growing into GBs then consider restarting the device to temporarily clear memory. user@device> show system processes node fpc<num> detail | match cfmman Example: show system processes node fpc0 detail | match cfmman F S UID PID PPID PGID SID C PRI NI ADDR SZ WCHAN RSS PSR STIME TTY TIME CMD 4 S root 15204 1 15204 15204 0 80 0 - 90802 - 113652 4 Sep25 ? 00:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml This issue affects Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016: * from 23.2R1-EVO before 23.2R2-S4-EVO, * from 23.4 before 23.4R2-S4-EVO, * from 24.2 before 24.2R2-EVO, * from 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO. This issue does not affect Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 before 23.2R1-EVO.

References

	URL	Tags
	sirt@juniper.net	https://supportportal.juniper.net/JSA103144	Exploit, Vendor Advisory
	sirt@juniper.net	https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/topic-map/cfm-configuring.html	Technical Description

Impacted products

Vendor	Product	Version
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.2
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	23.4
juniper	junos_os_evolved	24.2
juniper	junos_os_evolved	24.2
juniper	junos_os_evolved	24.2
juniper	junos_os_evolved	24.4
juniper	junos_os_evolved	24.4
juniper	junos_os_evolved	24.4
juniper	ptx10001-36mr	-
juniper	ptx10002-36qdd	-
juniper	ptx10004	-
juniper	ptx10008	-
juniper	ptx10016	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "cfmman",
            "cfmd"
          ],
          "platforms": [
            "PTX10001-36MR",
            "PTX10002-36QDD",
            "PTX10004",
            "PTX10008",
            "PTX10016"
          ],
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
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              "status": "affected",
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            },
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            },
            {
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              "status": "affected",
              "version": "24.2-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "24.4R1-S2-EVO, 24.4R2-EVO",
              "status": "affected",
              "version": "24.4-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "23.2R1-EVO",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
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    }
  ],
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management (CFM) daemon\u00a0and the Connectivity Fault Management Manager (cfmman)\u00a0of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nAn attacker on an adjacent device sending specific valid traffic can cause cfmd to spike the CPU to 100% and cfmman\u0027s memory to leak, eventually to cause the FPC crash and restart.\n\nContinued receipt and processes of these specific valid packets will sustain the Denial of Service (DoS) condition.\n\nAn indicator of compromise is to watch\u00a0for an increase in cfmman memory rising over time by issuing the following command and evaluating the\u00a0RSS\u00a0number.\u00a0If the RSS is growing into GBs then consider restarting the device to temporarily clear memory.\n \n\u00a0 user@device\u003e show system processes node fpc\u003cnum\u003e detail | match cfmman\n\nExample:\u00a0\n\n\u00a0 show system processes node fpc0 detail | match cfmman\u00a0\n\u00a0 F S UID \u00a0 \u00a0 \u00a0  PID\u00a0 \u00a0 \u00a0 \u00a0PPID  PGID \u00a0 SID\u00a0 \u00a0C PRI  NI\u00a0 ADDR SZ\u00a0 \u00a0 WCHAN \u00a0  RSS\u00a0 \u00a0 \u00a0PSR STIME TTY \u00a0 \u00a0 \u00a0 \u00a0  TIME\u00a0 \u00a0 \u00a0CMD\n\u00a0 4 S root\u00a0 \u00a0 \u00a0 15204 \u00a0 \u00a0 1\u00a0 \u00a0 15204\u00a0 15204  0  80\u00a0 0\u00a0 \u00a0- 90802\u00a0 \u00a0 \u00a0-\u00a0 \u00a0 \u00a0 113652\u00a0 \u00a04\u00a0 Sep25 ?\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a000:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml\nThis issue affects Junos OS Evolved on\u00a0PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016:\n\n  *  from 23.2R1-EVO before 23.2R2-S4-EVO, \n  *  from 23.4 before 23.4R2-S4-EVO, \n  *  from 24.2 before 24.2R2-EVO, \n  *  from 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO.\n\n\nThis issue does not affect Junos OS Evolved on\u00a0PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  before 23.2R1-EVO."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Consumo de Recursos No Controlado en el demonio de Gesti\u00f3n de Fallos de Conectividad (CFM) y el Gestor de Gesti\u00f3n de Fallos de Conectividad (cfmman) de Juniper Networks Junos OS Evolved en PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 permite a un atacante adyacente no autenticado causar una denegaci\u00f3n de servicio (DoS).\n\nUn atacante en un dispositivo adyacente que env\u00eda tr\u00e1fico v\u00e1lido espec\u00edfico puede hacer que cfmd dispare la CPU al 100% y que la memoria de cfmman tenga una fuga, lo que eventualmente causar\u00e1 el fallo y reinicio del FPC.\n\nLa recepci\u00f3n y el procesamiento continuos de estos paquetes v\u00e1lidos espec\u00edficos mantendr\u00e1n la condici\u00f3n de denegaci\u00f3n de servicio (DoS).\n\nUn indicador de compromiso es observar un aumento en la memoria de cfmman que crece con el tiempo emitiendo el siguiente comando y evaluando el n\u00famero RSS. Si el RSS est\u00e1 creciendo a GB, entonces considere reiniciar el dispositivo para liberar temporalmente la memoria.\n\n user@device\u003e show system processes node fpc\u003cnum\u003e detail | match cfmman\n\nEjemplo:\n\n show system processes node fpc0 detail | match cfmman\n F S UID         PID       PPID  PGID   SID    C PRI  NI  ADDR SZ     WCHAN    RSS     PSR STIME TTY         TIME     CMD\n 4 S root      15204        1   15204  15204  0  80  0    - 90802       -      113652     4  Sep25 ?           00:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml\nEste problema afecta a Junos OS Evolved en PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016:\n\n * desde 23.2R1-EVO antes de 23.2R2-S4-EVO,\n * desde 23.4 antes de 23.4R2-S4-EVO,\n * desde 24.2 antes de 24.2R2-EVO,\n * desde 24.4 antes de 24.4R1-S2-EVO, 24.4R2-EVO.\n\n\nEste problema no afecta a Junos OS Evolved en PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 antes de 23.2R1-EVO."
    }
  ],
  "id": "CVE-2025-52961",
  "lastModified": "2026-10-08T13:10:00.200",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "sirt@juniper.net",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "YES",
          "Recovery": "AUTOMATIC",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "ADJACENT",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "GREEN",
          "subAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "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/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:A/V:C/RE:M/U:Green",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "MODERATE"
        },
        "source": "sirt@juniper.net",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52961",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-09T19:43:31.113048Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-09T16:15:45.247",
  "references": [
    {
      "source": "sirt@juniper.net",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://supportportal.juniper.net/JSA103144"
    },
    {
      "source": "sirt@juniper.net",
      "tags": [
        "Technical Description"
      ],
      "url": "https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/topic-map/cfm-configuring.html"
    }
  ],
  "sourceIdentifier": "sirt@juniper.net",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "sirt@juniper.net",
      "type": "Secondary"
    }
  ]
}

CVE-2025-52961 (GCVE-0-2025-52961)

Vulnerability from cvelistv5 – Published: 2025-10-09 15:40 – Updated: 2025-10-09 19:49

Title

Junos OS Evolved: PTX Series except PTX10003: An unauthenticated adjacent attacker sending specific valid traffic can cause a memory leak in cfmman leading to FPC crash and restart

Summary

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:A/V:C/RE:M/U:Green

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-09 19:43 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

juniper CNA under the mitre root

CNA scorecard B 85/100 over 22 records in the last 180 days details

References

2 references

URL	Tags
https://supportportal.juniper.net/JSA103144	vendor-advisory
https://www.juniper.net/documentation/us/en/softw…	technical-description

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	Junos OS Evolved	Affected: 23.2R1-EVO , < 23.2R2-S4-EVO (semver) Affected: 23.4-EVO , < 23.4R2-S4-EVO (semver) Affected: 24.2-EVO , < 24.2R2-EVO (semver) Affected: 24.4-EVO , < 24.4R1-S2-EVO, 24.4R2-EVO (semver) Unaffected: 0 , < 23.2R1-EVO (semver)

Date Public

2025-10-08 16:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-52961",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-09T19:43:31.113048Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-09T19:49:35.262Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "cfmman",
            "cfmd"
          ],
          "platforms": [
            "PTX10001-36MR",
            "PTX10002-36QDD",
            "PTX10004",
            "PTX10008",
            "PTX10016"
          ],
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "23.2R2-S4-EVO",
              "status": "affected",
              "version": "23.2R1-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "23.4R2-S4-EVO",
              "status": "affected",
              "version": "23.4-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "24.2R2-EVO",
              "status": "affected",
              "version": "24.2-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "24.4R1-S2-EVO, 24.4R2-EVO",
              "status": "affected",
              "version": "24.4-EVO",
              "versionType": "semver"
            },
            {
              "lessThan": "23.2R1-EVO",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "This issue occurs only when CFM has been configured on any interface:\u003cbr\u003e\u003ctt\u003e\u0026nbsp; [ protocols oam ethernet connectivity-fault-management maintenance-domain \u0026lt;md-name\u0026gt; level \u0026lt;number\u0026gt; ]\u003cbr\u003e\u003c/tt\u003e"
            }
          ],
          "value": "This issue occurs only when CFM has been configured on any interface:\n\u00a0 [ protocols oam ethernet connectivity-fault-management maintenance-domain \u003cmd-name\u003e level \u003cnumber\u003e ]"
        }
      ],
      "datePublic": "2025-10-08T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management (CFM) daemon\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;and the Connectivity Fault Management Manager (cfmman)\u0026nbsp;\u003c/span\u003eof Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\u003cbr\u003e\u003cbr\u003eAn attacker on an adjacent device sending specific valid traffic can cause cfmd to spike the CPU to 100% and cfmman\u0027s memory to leak, eventually to cause the FPC crash and restart.\u003cbr\u003e\u003cbr\u003eContinued receipt and processes of these specific valid packets will sustain the Denial of Service (DoS) condition.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eAn indicator of compromise is to watch\u0026nbsp;for an increase in cfmman memory rising over time by issuing the following command and evaluating the\u0026nbsp;\u003ctt\u003e\u003cspan style=\"background-color: rgb(239, 250, 102);\"\u003e\u003cb\u003eRSS\u003c/b\u003e\u003c/span\u003e\u0026nbsp;number.\u0026nbsp;If the RSS is growing into GBs then consider restarting the device to temporarily clear memory.\u003c/tt\u003e\u003cbr\u003e \u003cbr\u003e\u003c/span\u003e\u003ctt\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp; user@device\u0026gt; show system processes node fpc\u003ci\u003e\u0026lt;num\u0026gt;\u003c/i\u003e detail | match cfmman\u003cbr\u003e\u003c/span\u003e\u003c/tt\u003e\u003cbr\u003eExample:\u0026nbsp;\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e\u0026nbsp; show system processes node fpc0 detail | match cfmman\u0026nbsp;\u003c/tt\u003e\u003ctt\u003e\u003cbr\u003e\u0026nbsp; F S UID \u0026nbsp; \u0026nbsp; \u0026nbsp;  PID\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;PPID  PGID \u0026nbsp; SID\u0026nbsp; \u0026nbsp;C PRI  NI\u0026nbsp; ADDR SZ\u0026nbsp; \u0026nbsp; WCHAN \u0026nbsp;  \u003cb\u003e\u003cspan style=\"background-color: rgb(239, 250, 102);\"\u003eRSS\u003c/span\u003e\u003c/b\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp;PSR STIME TTY \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;  TIME\u0026nbsp; \u0026nbsp; \u0026nbsp;CMD\u003cbr\u003e\u0026nbsp; 4 S root\u0026nbsp; \u0026nbsp; \u0026nbsp; 15204 \u0026nbsp; \u0026nbsp; 1\u0026nbsp; \u0026nbsp; 15204\u0026nbsp; 15204  0  80\u0026nbsp; 0\u0026nbsp; \u0026nbsp;- 90802\u0026nbsp; \u0026nbsp; \u0026nbsp;-\u0026nbsp; \u0026nbsp; \u0026nbsp; \u003cb\u003e\u003cspan style=\"background-color: rgb(239, 250, 102);\"\u003e113652\u003c/span\u003e\u003c/b\u003e\u0026nbsp; \u0026nbsp;4\u0026nbsp; Sep25 ?\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;00:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml\u003c/tt\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Junos OS Evolved on\u0026nbsp;PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016:\u003c/p\u003e\u003cul\u003e\u003cli\u003efrom 23.2R1-EVO before 23.2R2-S4-EVO, \u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S4-EVO, \u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2-EVO, \u003c/li\u003e\u003cli\u003efrom 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO.\u003c/li\u003e\u003c/ul\u003eThis issue does not affect Junos OS Evolved on\u0026nbsp;PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  before 23.2R1-EVO."
            }
          ],
          "value": "An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management (CFM) daemon\u00a0and the Connectivity Fault Management Manager (cfmman)\u00a0of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nAn attacker on an adjacent device sending specific valid traffic can cause cfmd to spike the CPU to 100% and cfmman\u0027s memory to leak, eventually to cause the FPC crash and restart.\n\nContinued receipt and processes of these specific valid packets will sustain the Denial of Service (DoS) condition.\n\nAn indicator of compromise is to watch\u00a0for an increase in cfmman memory rising over time by issuing the following command and evaluating the\u00a0RSS\u00a0number.\u00a0If the RSS is growing into GBs then consider restarting the device to temporarily clear memory.\n \n\u00a0 user@device\u003e show system processes node fpc\u003cnum\u003e detail | match cfmman\n\nExample:\u00a0\n\n\u00a0 show system processes node fpc0 detail | match cfmman\u00a0\n\u00a0 F S UID \u00a0 \u00a0 \u00a0  PID\u00a0 \u00a0 \u00a0 \u00a0PPID  PGID \u00a0 SID\u00a0 \u00a0C PRI  NI\u00a0 ADDR SZ\u00a0 \u00a0 WCHAN \u00a0  RSS\u00a0 \u00a0 \u00a0PSR STIME TTY \u00a0 \u00a0 \u00a0 \u00a0  TIME\u00a0 \u00a0 \u00a0CMD\n\u00a0 4 S root\u00a0 \u00a0 \u00a0 15204 \u00a0 \u00a0 1\u00a0 \u00a0 15204\u00a0 15204  0  80\u00a0 0\u00a0 \u00a0- 90802\u00a0 \u00a0 \u00a0-\u00a0 \u00a0 \u00a0 113652\u00a0 \u00a04\u00a0 Sep25 ?\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a000:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml\nThis issue affects Junos OS Evolved on\u00a0PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016:\n\n  *  from 23.2R1-EVO before 23.2R2-S4-EVO, \n  *  from 23.4 before 23.4R2-S4-EVO, \n  *  from 24.2 before 24.2R2-EVO, \n  *  from 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO.\n\n\nThis issue does not affect Junos OS Evolved on\u00a0PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016  before 23.2R1-EVO."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
            }
          ],
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "Automatable": "YES",
            "Recovery": "AUTOMATIC",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "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:A/V:C/RE:M/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "MODERATE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-09T15:42:58.625Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://supportportal.juniper.net/JSA103144"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://www.juniper.net/documentation/us/en/software/junos/network-mgmt/topics/topic-map/cfm-configuring.html"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The following software releases have been updated to resolve this specific issue:\u0026nbsp;\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eJunos OS Evolved: 23.2R2-S4-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-S2-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "The following software releases have been updated to resolve this specific issue:\u00a0\nJunos OS Evolved: 23.2R2-S4-EVO, 23.4R2-S4-EVO, 24.2R2-EVO, 24.4R1-S2-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA103144",
        "defect": [
          "1856405"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS Evolved: PTX Series except PTX10003: An unauthenticated adjacent attacker sending specific valid traffic can cause a memory leak in cfmman leading to FPC crash and restart",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "There are no known workarounds for this issue.\u003cbr\u003eTo reduce the risk of exploitation, enable input and output access control lists (ACLs) and other filtering mechanisms to limit access to the device only from trusted users, hosts and networks.\u003cbr\u003e"
            }
          ],
          "value": "There are no known workarounds for this issue.\nTo reduce the risk of exploitation, enable input and output access control lists (ACLs) and other filtering mechanisms to limit access to the device only from trusted users, hosts and networks."
        }
      ],
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  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2025-52961",
    "datePublished": "2025-10-09T15:40:52.572Z",
    "dateReserved": "2025-06-23T13:17:37.424Z",
    "dateUpdated": "2025-10-09T19:49:35.262Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

FKIE_CVE-2025-52961

CVE-2025-52961 (GCVE-0-2025-52961)

Tags

Sightings

Nomenclature

Related by attack behaviour