Description
Tanium addressed a denial of service vulnerability in Tanium Server.
Published: 2026-05-27
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Tanium Server is vulnerable to a denial of service condition that can cause the service to become unresponsive or crash. The impact is a disruption of availability for users relying on Tanium Server functionality. This weakness is classified under CWE‑772, indicating a missing use of access control or similar oversight. The CVSS score of 6.5 reflects a moderate severity for availability loss, but the exact effect depends on the server’s role in the environment. The description does not detail prerequisites, so the exact attack vector is not specified, but the nature of the fault suggests an external request could trigger the fault once an attacker reaches the vulnerable endpoint.

Affected Systems

The affected product is Tanium Server. No specific version information is available; the vulnerability applies to the latest releases published before the advisory date, and likely to older releases that have not yet been updated. Only the Tanium Server component is mentioned; other Tanium products are not listed as affected.

Risk and Exploitability

With a CVSS score of 6.5 the risk is moderate, and no EPSS score is published, indicating limited publicly available exploitation data. The vulnerability is not listed in CISA KEV, implying no confirmed active exploitation at the time of analysis. Based on the description, the likely attack vector is remote, involving a malicious request sent to a Tanium Server instance that is exposed to a broader network. The absence of details about authentication or privilege requirements means that the exploit may be possible from unauthenticated or low-privilege attackers, but the exact conditions remain unclear.

Generated by OpenCVE AI on May 27, 2026 at 03:22 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply any available patch or update released by Tanium for Tanium Server as soon as it becomes available.
  • Restrict access to the Tanium Server by limiting inbound connections to trusted IP ranges or VPNs, ensuring only authorized administrators can reach the service.
  • Enable monitoring of the Tanium Server process and logs for sudden restarts, hangs, or abnormal traffic patterns that may indicate exploitation attempts.

Generated by OpenCVE AI on May 27, 2026 at 03:22 UTC.

Tracking

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Advisories

No advisories yet.

References
History

Wed, 27 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 27 May 2026 04:45:00 +0000

Type Values Removed Values Added
First Time appeared Tanium
Tanium tanium Server
Vendors & Products Tanium
Tanium tanium Server

Wed, 27 May 2026 02:15:00 +0000

Type Values Removed Values Added
Description Tanium addressed a denial of service vulnerability in Tanium Server.
Title Tanium addressed a denial of service vulnerability in Tanium Server.
Weaknesses CWE-772
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Subscriptions

Tanium Tanium Server
cve-icon MITRE

Status: PUBLISHED

Assigner: Tanium

Published:

Updated: 2026-05-27T13:50:44.570Z

Reserved: 2026-05-21T01:21:38.154Z

Link: CVE-2026-9156

cve-icon Vulnrichment

Updated: 2026-05-27T13:50:39.783Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-27T02:16:35.003

Modified: 2026-05-27T14:54:20.160

Link: CVE-2026-9156

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T04:30:15Z

Weaknesses