Tanium addressed an improper certificate validation vulnerability in multiple products

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-121565
StatePUBLISHED
AssignerTanium
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-03 23:17:35 UTC
Updated2026-11-04 12:17:06 UTC
DescriptionTanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys.

Risk And Classification

Primary CVSS: v3.1 7.4 HIGH from 3938794e-25f5-4123-a1ba-5cbd7f104512

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-295 | CWE-295 Improper Certificate Validation

VersionSourceTypeScoreSeverityVector
3.13938794e-25f5-4123-a1ba-5cbd7f104512Secondary7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Tanium TanOS affected 1.8.5 1.8.5.0326 custom Not specified
CNA Tanium TanOS affected 1.8.6 1.8.6.0193 custom Not specified
CNA Tanium TanOS affected 1.9.0 1.9.0.0089 custom Not specified
CNA Tanium Asset affected 1.33 1.33.334 custom Not specified
CNA Tanium Asset affected 1.36 1.36.182 custom Not specified
CNA Tanium Asset affected 1.39 1.39.164 custom Not specified
CNA Tanium Comply affected 2.32 2.32.275 custom Not specified
CNA Tanium Comply affected 2.35 2.35.337 custom Not specified
CNA Tanium Comply affected 2.37 2.37.347 custom Not specified
CNA Tanium Connect affected 5.29 5.29.272 custom Not specified
CNA Tanium Connect affected 5.37 5.37.177 custom Not specified
CNA Tanium Connect affected 5.47 5.47.135 custom Not specified
CNA Tanium Integrity Monitor affected 3.6 3.6.608 custom Not specified
CNA Tanium Integrity Monitor affected 3.7 3.7.383 custom Not specified
CNA Tanium Integrity Monitor affected 3.8 3.8.362 custom Not specified
CNA Tanium Health Check affected 1.13 1.13.653 custom Not specified
CNA Tanium Endpoint Configuration Toolset Solution affected 1.51 1.51.61 custom Not specified
CNA Tanium Endpoint Configuration Toolset Solution affected 1.59 1.59.51 custom Not specified
CNA Tanium Endpoint Configuration Toolset Solution affected 1.71 1.71.26 custom Not specified
CNA Tanium Patch affected 3.24 3.24.328 custom Not specified
CNA Tanium Patch affected 3.28 3.28.346 custom Not specified
CNA Tanium Patch affected 3.32 3.32.383 custom Not specified
CNA Tanium Performance affected 1.25 1.25.196 custom Not specified
CNA Tanium Reputation affected 6.6 6.6.150 custom Not specified
CNA Tanium Reputation affected 6.7 6.7.143 custom Not specified
CNA Tanium Reputation affected 6.8 6.8.167 custom Not specified
CNA Tanium Reveal affected 2.4 2.4.109 custom Not specified
CNA Tanium Reveal affected 2.5 2.5.166 custom Not specified
CNA Tanium Threat Response affected 4.9 4.9.480 custom Not specified
CNA Tanium Threat Response affected 4.12 4.12.353 custom Not specified
CNA Tanium Threat Response affected 4.17 4.17.333 custom Not specified
CNA Tanium Provision Host affected 10.4.100 10.4.100 semver Not specified
CNA Tanium Provision Host affected 10.8.115 10.8.115 semver Not specified
CNA Tanium Provision Host affected 10.9.113 10.9.113 semver Not specified
CNA Tanium Provision Host affected 10.10.189 10.10.189 semver Not specified
CNA Tanium Provision Host affected 10.11.127 10.11.127 semver Not specified

References

ReferenceSourceLinkTags
security.tanium.com/TAN-2026-092 3938794e-25f5-4123-a1ba-5cbd7f104512 security.tanium.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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