CVE-2025-15312
Published: 05 February 2026
Summary
CVE-2025-15312 is a medium-severity Improper Encoding or Escaping of Output (CWE-116) vulnerability in Tanium Tanos. Its CVSS base score is 6.6 (Medium).
Operationally, ranked at the 7.7th 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-15 (Information Output Filtering) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2025-15312 is an improper output sanitization vulnerability, classified under CWE-116, affecting the Tanium Appliance. Tanium addressed the issue, with the CVE published on 2026-02-05T19:15:52.587 and assigned a CVSS v3.1 base score of 6.6 (AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
The vulnerability is exploitable over the network (AV:N) by users with high privileges (PR:H), though it requires high attack complexity (AC:H) 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 security scope (S:U).
Mitigation details are provided in Tanium's security advisory TAN-2025-003, available at https://security.tanium.com/TAN-2025-003.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-206830
Vulnerability details
Tanium addressed an improper output sanitization vulnerability in Tanium Appliance.
- CWE(s)
Related Threats
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Insufficient information to map techniques.CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires filtering of system output to enforce proper sanitization and block the CWE-116 flaw in Tanium Appliance responses.
Mandates timely application of the vendor patch in TAN-2025-003 to eliminate the improper output sanitization vulnerability.
Enforces information flow rules that can require sanitization of data leaving the Tanium Appliance before it reaches users or other systems.