{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-52960", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2025-06-23T13:17:37.424Z", "datePublished": "2025-10-09T15:40:20.193Z", "dateUpdated": "2025-12-01T08:41:51.806Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["SRX Series", "MX Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "22.4R3-S7", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "23.2R2-S4", "status": "affected", "version": "23.2", "versionType": "semver"}, {"lessThan": "23.4R2-S5", "status": "affected", "version": "23.4", "versionType": "semver"}, {"lessThan": "24.2R2", "status": "affected", "version": "24.2", "versionType": "semver"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.</p><p>Please verify on SRX, and MX with SPC3 with:</p><code>user@host&gt; show security alg status | match sip</code><b><br></b><code>SIP : Enabled</code><b><p><br></p></b><p>Please verify on MX whether the following is configured:</p><code>[services ... rule &lt;rule-name&gt; (term &lt;term-name&gt; ) from/match application/application-set &lt;name&gt;]</code><p>where either</p><code>a. name = junos-sip</code><p>or an application or application-set refers to SIP:</p><code>b. [applications application &lt;name&gt; application-protocol sip]</code><p>or</p><code>c. [applications application-set &lt;name&gt; application junos-sip]</code><br>"}], "value": "To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.\n\nPlease verify on SRX, and MX with SPC3 with:\n\nuser@host> show security alg status | match sip\nSIP : Enabled\n\n\nPlease verify on MX whether the following is configured:\n\n[services ... rule <rule-name> (term <term-name> ) from/match application/application-set <name>]where either\n\na. name = junos-sipor an application or application-set refers to SIP:\n\nb. [applications application <name> application-protocol sip]or\n\nc. [applications application-set <name> application junos-sip]"}], "datePublic": "2025-10-08T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A Buffer Copy without Checking Size of Input vulnerability in the \n\nSession Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).<br><br>When memory utilization is high, and specific <span style=\"background-color: rgb(255, 255, 255);\">SIP&nbsp;</span>packets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.<br><p>This issue affects Junos OS on SRX Series and MX Series:&nbsp;<br></p><ul><li>All versions before 22.4R3-S7,</li><li>from 23.2 before 23.2R2-S4, </li><li>from 23.4 before 23.4R2-S5, </li><li>from 24.2 before 24.2R2.</li></ul>"}], "value": "A Buffer Copy without Checking Size of Input vulnerability in the \n\nSession Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nWhen memory utilization is high, and specific SIP\u00a0packets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. 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While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.\nThis issue affects Junos OS on SRX Series and MX Series:\u00a0\n\n\n * All versions before 22.4R3-S7,\n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S5, \n * from 24.2 before 24.2R2.", "supportingMedia": [{"type": "text/html", "value": "A Buffer Copy without Checking Size of Input vulnerability in the \n\nSession Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).<br><br>When memory utilization is high, and specific <span style=\"background-color: rgb(255, 255, 255);\">SIP&nbsp;</span>packets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.<br><p>This issue affects Junos OS on SRX Series and MX Series:&nbsp;<br></p><ul><li>All versions before 22.4R3-S7,</li><li>from 23.2 before 23.2R2-S4, </li><li>from 23.4 before 23.4R2-S5, </li><li>from 24.2 before 24.2R2.</li></ul>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "configurations": [{"lang": "en", "value": "To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.\n\nPlease verify on SRX, and MX with SPC3 with:\n\nuser@host> show security alg status | match sip\nSIP : Enabled\n\n\nPlease verify on MX whether the following is configured:\n\n[services ... rule <rule-name> (term <term-name> ) from/match application/application-set <name>]where either\n\na. name = junos-sipor an application or application-set refers to SIP:\n\nb. [applications application <name> application-protocol sip]or\n\nc. [applications application-set <name> application junos-sip]", "supportingMedia": [{"type": "text/html", "value": "<p>To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.</p><p>Please verify on SRX, and MX with SPC3 with:</p><code>user@host&gt; show security alg status | match sip</code><b><br></b><code>SIP : Enabled</code><b><p><br></p></b><p>Please verify on MX whether the following is configured:</p><code>[services ... rule &lt;rule-name&gt; (term &lt;term-name&gt; ) from/match application/application-set &lt;name&gt;]</code><p>where either</p><code>a. name = junos-sip</code><p>or an application or application-set refers to SIP:</p><code>b. [applications application &lt;name&gt; application-protocol sip]</code><p>or</p><code>c. 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While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.\nThis issue affects Junos OS on SRX Series and MX Series:\u00a0\n\n\n * All versions before 22.4R3-S7,\n * from 23.2 before 23.2R2-S4, \n * from 23.4 before 23.4R2-S5, \n * from 24.2 before 24.2R2."}], "id": "CVE-2025-52960", "lastModified": "2026-01-23T18:34:26.870", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "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": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/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:X/RE:M/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2025-10-09T16:15:45.033", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA103143"}, {"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA103143"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

{}