{"id":"CVE-2026-111090","state":"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.","publishedAt":"2026-10-20T07:42:53.842Z","updatedAt":"2026-10-20T19:13:40.735Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"airbus"},"assigner":"airbus","products":["Stormshield Stormshield Network Security"],"affected":[{"vendor":"Stormshield","product":"Stormshield Network Security","defaultStatus":"unknown","versions":[{"version":"4.3.0","status":"affected","lessThanOrEqual":"4.3.44","versionType":"semver"},{"version":"4.8.0","status":"affected","lessThanOrEqual":"4.8.19","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThanOrEqual":"5.0.9","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThanOrEqual":"5.1.3","versionType":"semver"},{"version":"4.8.20 LTSB","status":"unaffected","versionType":"semver"},{"version":"5.0.10","status":"unaffected","versionType":"semver"},{"version":"5.1.4 EA","status":"unaffected","versionType":"semver"},{"version":"4.3.45 QS","status":"unaffected","versionType":"semver"}]}],"references":["https://advisories.stormshield.eu/2026-031/"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/111xxx/CVE-2026-111090.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111090","state":"PUBLISHED","datePublished":"2026-10-20T07:42:53.842Z","dateUpdated":"2026-10-20T19:13:40.735Z","assignerShortName":"airbus","assignerOrgId":"24a3c815-5f22-4d74-967a-30958d6466f4","dateReserved":"2026-10-15T15:01:46.698Z"},"containers":{"cna":{"title":"Improper Signature Verification of Firmware Update Files","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."}],"affected":[{"vendor":"Stormshield","product":"Stormshield Network Security","defaultStatus":"unknown","versions":[{"version":"4.3.0","status":"affected","lessThanOrEqual":"4.3.44","versionType":"semver"},{"version":"4.8.0","status":"affected","lessThanOrEqual":"4.8.19","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThanOrEqual":"5.0.9","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThanOrEqual":"5.1.3","versionType":"semver"},{"version":"4.8.20 LTSB","status":"unaffected","versionType":"semver"},{"version":"5.0.10","status":"unaffected","versionType":"semver"},{"version":"5.1.4 EA","status":"unaffected","versionType":"semver"},{"version":"4.3.45 QS","status":"unaffected","versionType":"semver"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"airbus","orgId":"24a3c815-5f22-4d74-967a-30958d6466f4","dateUpdated":"2026-10-20T18:47:43.426Z"},"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":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-20T19:13:40.735Z"}}]}}}