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Local privilege escalation in Tanium End-User Notifications

Priority LOW 35CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Tanium Endpoint Configuration Toolset Solution from 1.51 before 1.51.60, from 1.59 before 1.59.50 and from 1.71 before 1.71.25 contains an improper link resolution flaw (CWE-59) in End-User Notifications. A local user with low privileges can exploit it to escalate privileges and gain high impact to confidentiality, integrity and availability. Tanium end-user-cx is also listed as affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

Tanium addressed a local privilege escalation vulnerability in End-User Notifications.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00139 3rd percentileScored 2026-11-07
Fix Fixed Endpoint Configuration Toolset Solution (Tanium): 1.51.60, 1.59.50, 1.71.25end-user-cx (Tanium): 1.8.47, 1.11.605, 1.19.325 +4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TaniumEndpoint Configuration Toolset Solution1.51 to before 1.51.60; 1.59 to before 1.59.50; 1.71 to before 1.71.251.51.60, 1.59.50, 1.71.25Patch availableCNA
Taniumend-user-cx1.8.47 to before 1.8.47; 1.11.605 to before 1.11.605; 1.19.325 to before 1.19.325; 1.21.835 to before 1.21.835; 1.22.1199 to before 1.22.1199; 1.23.766 to before 1.23.766; 1.24.590 to before 1.24.5901.8.47, 1.11.605, 1.19.325, 1.21.835, 1.22.1199, 1.23.766, 1.24.590Patch availableCNA
  • Endpoint Configuration Toolset Solution VendorTanium Affected 1.51 to before 1.51.60; 1.59 to before 1.59.50; 1.71 to before 1.71.25 Fixed in 1.51.60, 1.59.50, 1.71.25 Patch available CNA
  • end-user-cx VendorTanium Affected 1.8.47 to before 1.8.47; 1.11.605 to before 1.11.605; 1.19.325 to before 1.19.325; 1.21.835 to before 1.21.835; 1.22.1199 to before 1.22.1199; 1.23.766 to before 1.23.766; 1.24.590 to before 1.24.590 Fixed in 1.8.47, 1.11.605, 1.19.325, 1.21.835, 1.22.1199, 1.23.766, 1.24.590 Patch available CNA

Remediation

Upgrade Tanium Endpoint Configuration Toolset Solution to 1.51.60, 1.59.50 or 1.71.25. Upgrade Tanium end-user-cx to 1.8.47, 1.11.605, 1.19.325, 1.21.835, 1.22.1199, 1.23.766 or 1.24.590.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA Endpoint Configuration Toolset Solution (Tanium) Fixed in 1.51.60, 1.59.50, 1.71.25
  • Fix · CNA end-user-cx (Tanium) Fixed in 1.8.47, 1.11.605, 1.19.325, 1.21.835, 1.22.1199, 1.23.766, 1.24.590

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Tanium Endpoint Configuration Toolset Solution 1.51.60, 1.59.50, 1.71.25

    10 records Highest priority Priority LOW 10 LOW

    Other records, highest priority first

    • TI-2026-81463 Heap-based buffer overflow in Tanium IndexPriority LOW 35
    • TI-2026-81462 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35
    • TI-2026-81460 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35
  • Release ·

    Tanium end-user-cx 1.11.605, 1.19.325 and 5 more versions

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-81462 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35
    • TI-2026-81460 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-108305
  2. 2026-10-27 Alias added: GHSA-gvr9-hwfv-v28j
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-11-04 CISA SSVC decision points changed

References

  • TI-2026-81473 Unauthorized code execution in Tanium Threat Response CVSS 3.1HIGH 8.8
  • TI-2026-81459 Tanium Certificate Manager unauthorized code execution vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-59476 Tanium addressed a SQL injection vulnerability in Threat Response. CVSS 3.1HIGH 8.8
  • TI-2026-08094 Tanium addressed an unauthorized code execution vulnerability in Connect. CVSS 3.1HIGH 8.8
  • TI-2026-08093 Tanium addressed an unauthorized code execution vulnerability in Connect. CVSS 3.1HIGH 8.8
  • TI-2025-13983 Tanium addressed an improper input validation vulnerability in Deploy. CVSS 3.1HIGH 8.8
See all 135 →

Sources