{"cve":{"cve_id":"CVE-2026-28318","is_kev":true,"kev_date_added":"2026-06-05","kev_vendor_project":"SolarWinds","kev_product":"Serv-U","kev_vulnerability_name":"SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability","kev_short_description":"SolarWinds Serv-U contains an uncontrolled resource consumption vulnerability that allows specially crafted POST requests using the Content-Encoding: deflate header to crash the Serv-U service without authentication.","kev_required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","kev_due_date":"2026-06-19","kev_known_ransomware":false,"kev_notes":"https://www.solarwinds.com/trust-center/security-advisories/cve-2026-28318 ; https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm#link7 ; https://nvd.nist.gov/vuln/detail/CVE-2026-28318","kev_cwes":["CWE-400"],"epss_score":0.10659,"epss_percentile":0.95221,"epss_as_of":"2026-06-23","description":"SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update","published_at":"2026-06-04T14:05:58.218000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-400"],"nvd_references":["https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28318","https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:29:35.952848Z"},"effective_severity":"HIGH","badges":["kev"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"solarwinds","vendor_name":"SolarWinds","product_slug":"serv-u","product_name":"Serv-U","version_start":"15.5.4 and previous versions","version_start_inclusive":true,"version_end":"15.5.4 and previous versions","version_end_inclusive":true,"cpe23_uri":"cve5:solarwinds:serv-u:15.5.4 and previous versions:15.5.4 and previous versions"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28318","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm","source_type":"MISC","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-06-04T14:05:58.218000Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2026-06-05T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"cvss_changed","at":"2026-06-28T17:52:27.323269Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:52:27.323269Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:52:27.323269Z","label":"CVSS score revised","source":"cvelistv5"}]}