High severity · published Feb 5, 2026
CVE-2025-15312
Tanium addressed an improper output sanitization vulnerability in TanOS.
7.2
CVSS
0.4%
EPSS
No
On KEV
Description
Tanium addressed an improper output sanitization vulnerability in Tanium Appliance.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
Tanium Appliance · Tanium
1.8.3.0 before 1.8.3.0146; 1.8.4.0 before 1.8.4.0157 · source: vendor
TA
Tanos · Tanium
1.8.3 before 1.8.3.0146; 1.8.4 before 1.8.4.0157 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-15312
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-15312
Vendor Advisory
https://security.tanium.com/TAN-2025-003
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