{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-40139","sourceIdentifier":"13061848-ea10-403d-bd75-c83a022c2891","published":"2026-07-06T17:16:30.920","lastModified":"2026-07-07T18:39:48.160","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support. Improper processing of authentication requests may allow an unauthenticated remote attacker to bypass access controls and gain unauthorized access to the appliance, including accounts with elevated privileges. Exploitation requires a specific authentication configuration to be enabled."}],"affected":[{"source":"13061848-ea10-403d-bd75-c83a022c2891","affectedData":[{"vendor":"BeyondTrust","product":"Remote Support","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"25.3.2","versionType":"custom","status":"affected"}]},{"vendor":"BeyondTrust","product":"Privileged Remote Access","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"25.3.2","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"13061848-ea10-403d-bd75-c83a022c2891","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":9.2,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-06T00:00:00+00:00","id":"CVE-2026-40139","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"13061848-ea10-403d-bd75-c83a022c2891","type":"Secondary","description":[{"lang":"en","value":"CWE-287"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*","versionEndExcluding":"25.3.3","matchCriteriaId":"79807D69-2935-4EC4-B34F-3BBFCE1D6EC1"},{"vulnerable":true,"criteria":"cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*","versionEndExcluding":"25.3.3","matchCriteriaId":"91823A93-2793-4FA6-AB9B-60E62102AE0E"}]}]}],"references":[{"url":"https://www.beyondtrust.com/trust-center/security-advisories/bt26-03","source":"13061848-ea10-403d-bd75-c83a022c2891","tags":["Vendor Advisory"]}]}}