Cyber Resilience

CVE-2025-15322

Access Control in Tanium Server 7.6.2.0 – 7.6.2.1327

Published
30 January 2026
Modified
09 March 2026
Patch / advisory
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0024 16th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-15322 is a medium-severity Incorrect Authorization (CWE-863) vulnerability in Tanium Server. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 16th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-24 (Access Control Decisions) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Tanium addressed an improper access controls vulnerability in Tanium Server.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-15317Same product: Tanium Server
CVE-2026-9156Same product: Tanium Server
CVE-2026-15053Same product: Tanium Server
CVE-2026-6408Same product: Tanium Server
CVE-2025-15342Same vendor: Tanium
CVE-2025-15316Same product: Tanium Server
CVE-2025-15288Same vendor: Tanium
CVE-2025-15315Same product: Tanium Server
CVE-2025-15321Same vendor: Tanium
CVE-2025-15336Same vendor: Tanium

Affected Assets

tanium
server
7.6.2.0 — 7.6.2.1327 · 7.6.4.0 — 7.6.4.2160 · 7.7.3.0 — 7.7.3.8231

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
  • AC-24 Access Control Decisions
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 5 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly enforces authorization checks before granting access to Tanium Server resources, preventing the improper authorization flaw described by CWE-863.

prevent

Restricts privileges to the minimum required, limiting the scope of access that could be improperly granted due to the authorization defect.

prevent

Ensures access control decisions are made consistently and correctly, directly mitigating failures in authorization logic within the server.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 mostly match
prevents

Defining, enforcing, and reviewing access authorizations and least privilege directly prevents incorrect authorization checks.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.

prevents

Enforcing policy-driven approval and role-change reviews stops incorrect or stale authorization decisions from remaining in effect after job changes or terminations.

prevents

By tying access rights to identity, device, location and classification, the control reduces the likelihood that an authorization decision will be based on an incorrect or bypassed policy.

References