CVE-2025-15330

High

Published: 05 February 2026

Published

05 February 2026

Modified

10 February 2026

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0002 6.5th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-15330 is a high-severity Missing Authorization (CWE-862) vulnerability in Tanium Deploy. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 6.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly mitigates the improper input validation vulnerability by requiring validation and corrective action on all information inputs to ensure consistency with expected content.

SI-2 Flaw Remediation good match

prevent

Addresses the specific CVE by requiring timely identification, reporting, and risk-based remediation of software flaws like this high-severity input validation issue.

SI-9 Information Input Restrictions partial match

prevent

Complements input validation by restricting the types and quantities of information permitted at system interfaces, reducing the attack surface for malformed inputs.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

T1210 Exploitation of Remote Services Lateral Movement

Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.

attack.mitre.org →

Why these techniques?

Missing authorization (CWE-862) in Tanium Deploy with low-priv network access enables remote service exploitation and privilege escalation to achieve high C/I/A impact.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

Tanium addressed an improper input validation vulnerability in Deploy.

Deeper analysisAI

CVE-2025-15330 is an improper input validation vulnerability, classified under CWE-862, affecting Tanium Deploy. Tanium addressed this issue, which was published on 2026-02-05 with a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), marking it as high severity due to its potential for significant impact.

The vulnerability can be exploited by an attacker with low privileges (PR:L) over the network (AV:N), requiring low attack complexity (AC:L) and no user interaction (UI:N). Successful exploitation enables high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H) within the unchanged scope (S:U), potentially allowing unauthorized access, data modification, or disruption of Tanium Deploy services.

Tanium's security advisory TAN-2025-012 provides details on mitigation, available at https://security.tanium.com/TAN-2025-012.