{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33775","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","state":"PUBLISHED","assignerShortName":"juniper","dateReserved":"2026-03-23T19:46:13.668Z","datePublished":"2026-04-09T21:30:08.528Z","dateUpdated":"2026-04-13T18:06:19.695Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["MX Series"],"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"22.4R3-S8","status":"affected","version":"0","versionType":"semver"},{"lessThan":"23.2R2-S5","status":"affected","version":"23.2","versionType":"semver"},{"lessThan":"23.4R2-S6","status":"affected","version":"23.4","versionType":"semver"},{"lessThan":"24.2R2-S2","status":"affected","version":"24.2","versionType":"semver"},{"lessThan":"24.4R2","status":"affected","version":"24.4","versionType":"semver"},{"lessThan":"25.2R2","status":"affected","version":"25.2","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"A system is only affected, when packet-types is configured as follows:<br><br><tt>\n\n<span style=\"background-color: rgb(255, 255, 255);\">[ interface &lt;interface&gt; </span><span style=\"background-color: rgb(255, 255, 255);\">auto-configure (</span><span style=\"background-color: rgb(255, 255, 255);\">stacked-)vlan-ranges </span><span style=\"background-color: rgb(255, 255, 255);\">dynamic-profile &lt;profile-name&gt; </span><span style=\"background-color: rgb(255, 255, 255);\">accept &lt;packet-type1&gt; ]<br></span></tt>\n\n<tt><br></tt>which allows packets of type 1 to be processed on receipt, but<br><br><tt>[ interfaces &lt;interface&gt;auto-configure (stacked-)vlan-ranges&nbsp;authentication packet-types &lt;packet-type2&gt; ]<br><br></tt>is a mismatch and doesn't require authentication for these packets.<br><br>"}],"value":"A system is only affected, when packet-types is configured as follows:\n\n\n\n[ interface <interface> auto-configure (stacked-)vlan-ranges dynamic-profile <profile-name> accept <packet-type1> ]\n\n\n\nwhich allows packets of type 1 to be processed on receipt, but\n\n[ interfaces <interface>auto-configure (stacked-)vlan-ranges authentication packet-types <packet-type2> ]\n\nis a mismatch and doesn't require authentication for these packets."}],"datePublic":"2026-04-08T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"A Missing Release of Memory after Effective Lifetime vulnerability in the BroadBand Edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).<br><br>If the authentication packet-type option is configured and a received packet does not match that packet type, the memory leak occurs. When all memory \n\n<span style=\"background-color: rgb(255, 255, 255);\">available to bbe-smgd&nbsp;</span>has been consumed, no new subscribers will be able to login.<br><br>The memory utilization of bbe-smgd can be monitored with the following show command:<br><br><tt>user@host&gt; show system processes extensive | match bbe-smgd</tt><br><br>The below log message can be observed when this limit has been reached:<br><br><tt>bbesmgd[&lt;PID&gt;]: %DAEMON-3-SMD_DPROF_RSMON_ERROR: Resource unavailability, Reason: Daemon Heap Memory exhaustion</tt><br><br><br>This issue affects Junos OS on MX Series:<br><ul><li>all versions before 22.4R3-S8,</li><li>23.2 versions before 23.2R2-S5,</li><li>23.4 versions before 23.4R2-S6,</li><li>24.2 versions before 24.2R2-S2,</li><li>24.4 versions before 24.4R2,</li><li>25.2 versions before 25.2R2.</li></ul><br>"}],"value":"A Missing Release of Memory after Effective Lifetime vulnerability in the BroadBand Edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).\n\nIf the authentication packet-type option is configured and a received packet does not match that packet type, the memory leak occurs. When all memory \n\navailable to bbe-smgd has been consumed, no new subscribers will be able to login.\n\nThe memory utilization of bbe-smgd can be monitored with the following show command:\n\nuser@host> show system processes extensive | match bbe-smgd\n\nThe below log message can be observed when this limit has been reached:\n\nbbesmgd[<PID>]: %DAEMON-3-SMD_DPROF_RSMON_ERROR: Resource unavailability, Reason: Daemon Heap Memory exhaustion\n\n\nThis issue affects Junos OS on MX Series:\n  *  all versions before 22.4R3-S8,\n  *  23.2 versions before 23.2R2-S5,\n  *  23.4 versions before 23.4R2-S6,\n  *  24.2 versions before 24.2R2-S2,\n  *  24.4 versions before 24.4R2,\n  *  25.2 versions before 25.2R2."}],"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":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","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/RE:M","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","description":"CWE-401 Missing Release of Memory after Effective Lifetime","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2026-04-09T21:30:08.528Z"},"references":[{"tags":["vendor-advisory"],"url":"https://kb.juniper.net/JSA107821"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: 22.4R3-S8, 23.2R2-S5, 23.4R2-S6, 24.2R2-S2, 24.4R2, 25.2R2, 25.4R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: 22.4R3-S8, 23.2R2-S5, 23.4R2-S6, 24.2R2-S2, 24.4R2, 25.2R2, 25.4R1, and all subsequent releases."}],"source":{"advisory":"JSA107821","defect":["1853434"],"discovery":"USER"},"title":"Junos OS: MX Series: Mismatch between configured and received packet types causes memory leak in bbe-smgd","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue."}],"value":"There are no known workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-33775","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-04-13T17:40:06.427057Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-13T18:06:19.695Z"}}]}}