CVE-2026-121565High· 7.4▾ TwilightTanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 40.7 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
Tanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys.
TanOS >= 1.8.5 < 1.8.5.0326TanOS >= 1.8.6 < 1.8.6.0193TanOS >= 1.9.0 < 1.9.0.0089Asset >= 1.33 < 1.33.334Asset >= 1.36 < 1.36.182Asset >= 1.39 < 1.39.164Comply >= 2.32 < 2.32.275Comply >= 2.35 < 2.35.337Comply >= 2.37 < 2.37.347Connect >= 5.29 < 5.29.272Connect >= 5.37 < 5.37.177Connect >= 5.47 < 5.47.135integrity_monitor >= 3.6 < 3.6.608integrity_monitor >= 3.7 < 3.7.383integrity_monitor >= 3.8 < 3.8.362health_check >= 1.13 < 1.13.653endpoint_configuration_toolset_solution >= 1.51 < 1.51.61endpoint_configuration_toolset_solution >= 1.59 < 1.59.51endpoint_configuration_toolset_solution >= 1.71 < 1.71.26Patch >= 3.24 < 3.24.328Patch >= 3.28 < 3.28.346Patch >= 3.32 < 3.32.383Performance >= 1.25 < 1.25.196Reputation >= 6.6 < 6.6.150Reputation >= 6.7 < 6.7.143Reputation >= 6.8 < 6.8.167Reveal >= 2.4 < 2.4.109Reveal >= 2.5 < 2.5.166threat_response >= 4.9 < 4.9.480threat_response >= 4.12 < 4.12.353threat_response >= 4.17 < 4.17.333provision_host >= 10.4.100 < 10.4.100provision_host >= 10.8.115 < 10.8.115provision_host >= 10.9.113 < 10.9.113provision_host >= 10.10.189 < 10.10.189provision_host >= 10.11.127 < 10.11.127Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-108326Medium· 6.5Tanium addressed an improper certificate validation vulnerability in Stream Client Extension.
CVE-2026-116666Medium· 4.3Tanium addressed an information disclosure vulnerability in Discover.
CVE-2026-116650High· 7.5Tanium addressed an unauthorized code execution vulnerability in Threat Response.
CVE-2026-116663Medium· 6.5Tanium addressed an improper access controls vulnerability in Enforce.
CVE-2026-116648Medium· 4.1Tanium addressed an improper output sanitization vulnerability in Discover.
CVE-2026-120775High· 7.2Tanium addressed a heap-based buffer overflow vulnerability in Deploy.