How severe is CVE-2025-15312?

CVE-2025-15312 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-15312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15312?

CVE-2025-15312 affects Tanium Tanos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15312?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-15312 have an EU (EUVD) identifier?

Yes. CVE-2025-15312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206830.

When was CVE-2025-15312 published?

CVE-2025-15312 was published on 2026-02-05 and last updated on 2026-06-17.

CVE-2025-15312

CVE-2025-15312 is a medium-severity vulnerability in Tanium Tanos with a CVSS 3.x base score of 6.6. 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-116.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206830
Weakness: CWE-116
Affected product: Tanium Tanos
Published: 2026-02-05
Last modified: 2026-06-17

Description

Tanium addressed an improper output sanitization vulnerability in Tanium Appliance.

Frequently asked questions

What is CVE-2025-15312?: Tanium addressed an improper output sanitization vulnerability in Tanium Appliance.
How severe is CVE-2025-15312?: CVE-2025-15312 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-15312 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15312?: CVE-2025-15312 affects Tanium Tanos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-15312 have an EU (EUVD) identifier?: Yes. CVE-2025-15312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206830.
When was CVE-2025-15312 published?: CVE-2025-15312 was published on 2026-02-05 and last updated on 2026-06-17.

References

https://security.tanium.com/TAN-2025-003

Affected products (1)

cpe:2.3:o:tanium:tanos:*:*:*:*:*:*:*:*

More vulnerabilities in Tanium Tanos

CVE-2025-15311 — High (CVSS 7.8): Tanium addressed an unauthorized code execution 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.

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