{"cve_id":"CVE-2026-28318","published":"2026-06-04T15:16:50.407000+00:00","last_modified":"2026-10-21T11:17:07.457000+00:00","vuln_status":"Analyzed","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","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","base_score":7.5,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"NONE","impact_i":"NONE","impact_a":"HIGH","cwe_ids":["CWE-400"],"in_kev":true,"kev_date_added":"2026-06-05","kev_ransomware":false,"epss_score":0.43651,"epss_percentile":0.98742,"cap_rule_version":"0.1.1","stage":"IMPACT","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"NONE","caps":["DOS"],"terminal":true,"cap_confidence":"high","ingested_at":"2026-10-28T03:37:13.940719+00:00","first_seen":"2026-06-04T15:16:50.407000+00:00","kev_first_seen":"2026-06-05T00:00:00+00:00","novelty_score":32.44,"novelty_reasons":["EPSS_SPIKE"],"novelty_at":"2026-11-02T03:21:44.260683+00:00","vendors":["solarwinds"],"products":["serv-u"],"affected":[{"vendor":"solarwinds","product":"serv-u","ranges":["< 15.5.4","15.5.4"]}]}