CVE-2026-121565
Tanium addressed an improper certificate validation vulnerability in multiple products
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-295 |
| Vendor | tanium |
| Product | tanos |
| Published | Nov 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Tanium / TanOS
1.8.5 < 1.8.5.0326 1.8.6 < 1.8.6.0193 1.9.0 < 1.9.0.0089
Tanium / Asset
1.33 < 1.33.334 1.36 < 1.36.182 1.39 < 1.39.164
Tanium / Comply
2.32 < 2.32.275 2.35 < 2.35.337 2.37 < 2.37.347
Tanium / Connect
5.29 < 5.29.272 5.37 < 5.37.177 5.47 < 5.47.135
Tanium / Integrity Monitor
3.6 < 3.6.608 3.7 < 3.7.383 3.8 < 3.8.362
Tanium / Health Check
1.13 < 1.13.653
Tanium / Endpoint Configuration Toolset Solution
1.51 < 1.51.61 1.59 < 1.59.51 1.71 < 1.71.26
Tanium / Patch
3.24 < 3.24.328 3.28 < 3.28.346 3.32 < 3.32.383
Tanium / Performance
1.22 < 1.22.355 1.23 < 1.23.318 1.25 < 1.25.196
Tanium / Reputation
6.6 < 6.6.150 6.7 < 6.7.143 6.8 < 6.8.167
Tanium / Reveal
2.4 < 2.4.109 2.5 < 2.5.166
Tanium / Threat Response
4.9 < 4.9.480 4.12 < 4.12.353 4.17 < 4.17.333
Tanium / Provision Host
10.4.100 < 10.4.100 10.8.115 < 10.8.115 10.9.113 < 10.9.113 10.10.189 < 10.10.189 10.11.127 < 10.11.127