{"id":"CVE-2026-111090","aliases":["EUVD-2026-104828","GHSA-cg8h-hvwf-mx5f"],"status":"published","title":"Improper Signature Verification of Firmware Update Files","description":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00165,"percentile":0.05744,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-10-20T07:42:53Z","modified":"2026-10-20T19:35:23Z","products":[{"vendor":"stormshield","product":"stormshield network security"}],"references":[{"url":"https://advisories.stormshield.eu/2026-031/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111090"},{"url":"https://advisories.stormshield.eu/2026-031"},{"url":"https://github.com/advisories/GHSA-cg8h-hvwf-mx5f"}],"sources":{"cve":[{"id":"CVE-2026-111090","title":"Improper Signature Verification of Firmware Update Files","description":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.","status":"published","published":"2026-10-20T07:42:53.842Z","modified":"2026-10-20T19:13:40.735Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:15.34316Z"}],"euvd":[{"id":"EUVD-2026-104828","description":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.","status":"published","published":"2026-10-20T07:42:53Z","modified":"2026-10-20T19:13:40Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:59:43.145678Z"}],"ghsa":[{"id":"GHSA-cg8h-hvwf-mx5f","title":"A logic error exists in the signature verification routine resulting in acceptance of...","description":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.","status":"published","published":"2026-10-20T09:31:04Z","modified":"2026-10-20T09:31:08Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:14:03.559653Z"}],"nvd":[{"id":"CVE-2026-111090","description":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.","status":"published","published":"2026-10-20T08:16:42.373Z","modified":"2026-10-20T19:35:23.397Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:13:00.83844Z"}]}}