CVE Explorer

CVE-2026-40140

BeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsystem. Insufficient validation of client-supplied input may allow an unauthenticated remote attacker to trigger a denial-of-service condition affecting appliance availability.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4bc3453862e4fe7493f127b56eb5aa62ee53dcb3f1de66333048f73fde76dbd5

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Remote Support","vendor":"BeyondTrust","versions":[{"lessThanOrEqual":"25.3.2","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Privileged Remote Access","vendor":"BeyondTrust","versions":[{"lessThanOrEqual":"25.3.2","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/affected/1

Affected products and versions

2 source assertions

{"defaultStatus":"unaffected","product":"Remote Support","vendor":"BeyondTrust","versions":[{"lessThanOrEqual":"25.3.2","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Privileged Remote Access","vendor":"BeyondTrust","versions":[{"lessThanOrEqual":"25.3.2","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://www.beyondtrust.com/trust-center/security-advisories/bt26-03"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:275009c3368043faac28ef83ebf48f7401667a8a7640478efbe3c472157f2e70 · sha256:309d286ba8b5488c… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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