{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2022-22227","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","datePublished":"2022-10-18T02:46:28.960Z","dateUpdated":"2025-05-12T14:29:55.117Z","dateReserved":"2021-12-21T00:00:00.000Z"},"containers":{"cna":{"title":"Junos OS Evolved: ACX7000 Series: Specific IPv6 transit traffic gets exceptioned to the routing-engine which causes increased CPU utilization","datePublic":"2022-10-12T00:00:00.000Z","providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2022-10-18T00:00:00.000Z"},"descriptions":[{"lang":"en","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On receipt of specific IPv6 transit traffic, Junos OS Evolved on ACX7100-48L, ACX7100-32C and ACX7509 sends this traffic to the Routing Engine (RE) instead of forwarding it, leading to increased CPU utilization of the RE and a partial DoS. This issue only affects systems configured with IPv6. This issue does not affect ACX7024 which is supported from 22.3R1-EVO onwards where the fix has already been incorporated as indicated in the solution section. This issue affects Juniper Networks Junos OS Evolved on ACX7100-48L, ACX7100-32C, ACX7509: 21.1-EVO versions prior to 21.1R3-S2-EVO; 21.2-EVO versions prior to 21.2R3-S2-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R1-S1-EVO, 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.1R1-EVO."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS Evolved","versions":[{"version":"unspecified","lessThan":"21.1R1-EVO","status":"unaffected","versionType":"custom"},{"version":"21.1-EVO","status":"affected","lessThan":"21.1R3-S2-EVO","versionType":"custom"},{"version":"21.2-EVO","status":"affected","lessThan":"21.2R3-S2-EVO","versionType":"custom"},{"version":"21.3-EVO","status":"affected","lessThan":"21.3R3-EVO","versionType":"custom"},{"version":"21.4-EVO","status":"affected","lessThan":"21.4R1-S1-EVO, 21.4R2-EVO","versionType":"custom"}],"platforms":["ACX7100-48L, ACX7100-32C, ACX7509"]}],"references":[{"url":"https://kb.juniper.net/JSA69878"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","cweId":"CWE-754"}]},{"descriptions":[{"type":"text","lang":"en","description":"Denial of Service (DoS)"}]}],"x_generator":{"engine":"Vulnogram 0.0.9"},"source":{"advisory":"JSA69878","defect":["1641006"],"discovery":"USER"},"configurations":[{"lang":"en","value":"To be exposed to this vulnerability a device needs to be configured with a minimal IPv6 configuration like in the following example:\n\n  [ interfaces <interface> unit <unit number> family inet6 ]"}],"workarounds":[{"lang":"en","value":"There are no viable workarounds for this issue."}],"exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 21.1R3-S2-EVO, 21.2R3-S2-EVO, 21.3R3-EVO, 21.4R1-S1-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases."}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T03:07:50.130Z"},"title":"CVE Program Container","references":[{"url":"https://kb.juniper.net/JSA69878","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-12T14:29:48.739364Z","id":"CVE-2022-22227","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-05-12T14:29:55.117Z"}}]}}