Answer in brief
CVE-2026-121565 records a High severity (CVSS 7.4) vulnerability in Tanium addressed an improper certificate validation vulnerability in multiple products. The current sources do not mark it as known exploited. The current feed maps Tanium/Asset (generic), Tanium/Comply (generic), Tanium/Connect (generic), Tanium/Endpoint Configuration Toolset Solution (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Tanium/Asset (generic), Tanium/Comply (generic), Tanium/Connect (generic), Tanium/Endpoint Configuration Toolset Solution (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Tanium/Assetgeneric | >=1.33 <1.33.334 || >=1.36 <1.36.182 || >=1.39 <1.39.164 | 1.33.334, 1.36.182, 1.39.164 |
| Tanium/Complygeneric | >=2.32 <2.32.275 || >=2.35 <2.35.337 || >=2.37 <2.37.347 | 2.32.275, 2.35.337, 2.37.347 |
| Tanium/Connectgeneric | >=5.29 <5.29.272 || >=5.37 <5.37.177 || >=5.47 <5.47.135 | 5.29.272, 5.37.177, 5.47.135 |
| Tanium/Endpoint Configuration Toolset Solutiongeneric | >=1.51 <1.51.61 || >=1.59 <1.59.51 || >=1.71 <1.71.26 | 1.51.61, 1.59.51, 1.71.26 |
| Tanium/Health Checkgeneric | >=1.13 <1.13.653 | 1.13.653 |
| Tanium/Integrity Monitorgeneric | >=3.6 <3.6.608 || >=3.7 <3.7.383 || >=3.8 <3.8.362 | 3.6.608, 3.7.383, 3.8.362 |
| Tanium/Patchgeneric | >=3.24 <3.24.328 || >=3.28 <3.28.346 || >=3.32 <3.32.383 | 3.24.328, 3.28.346, 3.32.383 |
| Tanium/Performancegeneric | >=1.22 <1.22.355 || >=1.23 <1.23.318 || >=1.25 <1.25.196 | 1.22.355, 1.23.318, 1.25.196 |
| Tanium/Reputationgeneric | >=6.6 <6.6.150 || >=6.7 <6.7.143 || >=6.8 <6.8.167 | 6.6.150, 6.7.143, 6.8.167 |
| Tanium/Revealgeneric | >=2.4 <2.4.109 || >=2.5 <2.5.166 | 2.4.109, 2.5.166 |
| Tanium/TanOSgeneric | >=1.8.5 <1.8.5.0326 || >=1.8.6 <1.8.6.0193 || >=1.9.0 <1.9.0.0089 | 1.8.5.0326, 1.8.6.0193, 1.9.0.0089 |
| Tanium/Threat Responsegeneric | >=4.9 <4.9.480 || >=4.12 <4.12.353 || >=4.17 <4.17.333 | 4.9.480, 4.12.353, 4.17.333 |
Published upstream
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 3, 2026
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.
Quoted source text, attributed separately from HOL analysis.