CVE-2025-15311
CVE-2025-15311 is a high-severity vulnerability in Tanium Tanos with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-150.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-206829
- Weakness: CWE-150
- Affected product: Tanium Tanos
- Published:
- Last modified:
Description
Tanium addressed an unauthorized code execution vulnerability in Tanium Appliance.
Frequently asked questions
- What is CVE-2025-15311?
- Tanium addressed an unauthorized code execution vulnerability in Tanium Appliance.
- How severe is CVE-2025-15311?
- CVE-2025-15311 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-15311 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-15311?
- CVE-2025-15311 affects Tanium Tanos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-15311?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-15311 have an EU (EUVD) identifier?
- Yes. CVE-2025-15311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206829.
- When was CVE-2025-15311 published?
- CVE-2025-15311 was published on 2026-02-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:tanium:tanos:*:*:*:*:*:*:*:*
More vulnerabilities in Tanium Tanos
- CVE-2025-15312 — Medium (CVSS 6.6): Tanium addressed an improper output sanitization vulnerability in Tanium Appliance.
- CVE-2025-13225 — Medium (CVSS 5.6): Tanium addressed an arbitrary file deletion vulnerability in TanOS.
- CVE-2026-2605 — Medium (CVSS 5.3): Tanium addressed an insertion of sensitive information into log file vulnerability in TanOS.
- CVE-2025-15323 — Low (CVSS 3.7): Tanium addressed an improper certificate validation vulnerability in Tanium Appliance.
- CVE-2025-15321 — Low (CVSS 2.7): Tanium addressed an improper input validation vulnerability in Tanium Appliance.
All CVEs affecting Tanium Tanos →
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