{"id":"CVE-2026-3204","aliases":["EUVD-2026-9337","GHSA-jq3r-jmv6-j5m4"],"status":"published","title":"Improper\n input validation in the error message page in Devolutions Server 2025.3.15 and earlier...","description":"Improper\n input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.006,"percentile":0.4905,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2026-03-03T21:24:30Z","modified":"2026-06-17T10:43:12Z","products":[{"vendor":"devolutions","product":"devolutions_server"},{"vendor":"devolutions","product":"server"}],"references":[{"url":"https://devolutions.net/security/advisories/DEVO-2026-0005","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3204"},{"url":"https://github.com/advisories/GHSA-jq3r-jmv6-j5m4"}],"sources":{"cve":[{"id":"CVE-2026-3204","description":"Improper\n input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.","status":"published","published":"2026-03-03T21:24:30.044Z","modified":"2026-03-04T16:36:47.1Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-9337","description":"Improper\n input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.","status":"published","published":"2026-03-03T21:24:30Z","modified":"2026-03-04T16:36:47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:48:11.18109Z"}],"ghsa":[{"id":"GHSA-jq3r-jmv6-j5m4","title":"Improper\n input validation in the error message page in Devolutions Server 2025.3.15 and earlier...","description":"Improper\n input validation in the error message page in Devolutions Server 2025.3.15 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.","status":"published","published":"2026-03-04T00:30:22Z","modified":"2026-03-04T15:30:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:06:26.948991Z"}],"nvd":[{"id":"CVE-2026-3204","description":"Improper\n input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.","status":"published","published":"2026-03-03T22:16:29.397Z","modified":"2026-06-17T10:43:12.377Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:07.420927Z"}]}}