{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111090","assignerOrgId":"24a3c815-5f22-4d74-967a-30958d6466f4","state":"PUBLISHED","assignerShortName":"airbus","dateReserved":"2026-10-15T15:01:46.698Z","datePublished":"2026-10-20T07:42:53.842Z","dateUpdated":"2026-10-20T19:13:40.735Z"},"containers":{"cna":{"providerMetadata":{"orgId":"24a3c815-5f22-4d74-967a-30958d6466f4","shortName":"airbus","dateUpdated":"2026-10-20T18:47:43.426Z"},"title":"Improper Signature Verification of Firmware Update Files","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-287","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"affected":[{"vendor":"Stormshield","product":"Stormshield Network Security","versions":[{"status":"affected","version":"4.3.0","lessThanOrEqual":"4.3.44","versionType":"semver"},{"status":"affected","version":"4.8.0","lessThanOrEqual":"4.8.19","versionType":"semver"},{"status":"affected","version":"5.0.0","lessThanOrEqual":"5.0.9","versionType":"semver"},{"status":"affected","version":"5.1.0","lessThanOrEqual":"5.1.3","versionType":"semver"},{"status":"unaffected","version":"4.8.20 LTSB","versionType":"semver"},{"status":"unaffected","version":"5.0.10","versionType":"semver"},{"status":"unaffected","version":"5.1.4 EA","versionType":"semver"},{"status":"unaffected","version":"4.3.45 QS","versionType":"semver"}],"defaultStatus":"unknown"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.<div>It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.</div>"}]}],"references":[{"url":"https://advisories.stormshield.eu/2026-031/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}}],"workarounds":[{"lang":"en","value":"If applicable, verify the SHA-256 hash of each update file. The reference hashes are available in the MyStormshield portal","supportingMedia":[{"type":"text/html","base64":false,"value":"If applicable, verify the SHA-256 hash of each update file. The reference hashes are available in the MyStormshield portal"}]}],"solutions":[{"lang":"en","value":"The following updates will fix this vulnerability:\n\n\n\n\n\n  *  \n\nSNS 5.1.4 EA\n\n\n  *  \n\nSNS 5.0.10\n\n\n  *  \n\nSNS 4.8.20 LTSB","supportingMedia":[{"type":"text/html","base64":false,"value":"<p><span>The following updates will fix this vulnerability:</span></p><p><b></b></p><ul><li><p><span>SNS 5.1.4 EA</span></p></li><li><p><span>SNS 5.0.10</span></p></li><li><p><span>SNS 4.8.20 LTSB</span></p></li></ul>"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-20T19:13:30.536198Z","id":"CVE-2026-111090","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-20T19:13:40.735Z"}}]}}