{"id":"CVE-2026-21709","state":"PUBLISHED","title":"A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.","description":"A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.","publishedAt":"2026-04-17T15:32:10.755Z","updatedAt":"2026-04-20T14:06:52.636Z","severity":{"score":6.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"hackerone","products":["Veeam Backup and Replication","Veeam Software Appliance"],"affected":[{"vendor":"Veeam","product":"Backup and Replication","defaultStatus":"unaffected","versions":[{"version":"12","status":"affected","lessThan":"12.3.2","versionType":"semver"}]},{"vendor":"Veeam","product":"Software Appliance","defaultStatus":"unaffected","versions":[{"version":"13","status":"affected","lessThan":"13.0.1","versionType":"semver"}]}],"references":["https://www.veeam.com/kb4830","https://www.veeam.com/kb4831"],"weaknesses":["CWE-77"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21709.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21709","state":"PUBLISHED","datePublished":"2026-04-17T15:32:10.755Z","dateUpdated":"2026-04-20T14:06:52.636Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2026-01-04T15:00:06.574Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement."}],"affected":[{"vendor":"Veeam","product":"Backup and Replication","defaultStatus":"unaffected","versions":[{"version":"12","status":"affected","lessThan":"12.3.2","versionType":"semver"}]},{"vendor":"Veeam","product":"Software Appliance","defaultStatus":"unaffected","versions":[{"version":"13","status":"affected","lessThan":"13.0.1","versionType":"semver"}]}],"references":[{"url":"https://www.veeam.com/kb4830"},{"url":"https://www.veeam.com/kb4831"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","type":"CWE","lang":"en","description":"CWE-77 Command Injection - Generic"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-04-17T15:32:10.755Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-04-18T03:55:57.432669Z","id":"CVE-2026-21709","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":"2026-04-20T14:06:52.636Z"}}]}}}