CVE-2025-15311

Q: How do I fix CVE-2025-15311?

Upgrade tanos to 1.8.3.0146 or later.

Q: Is CVE-2025-15311 being actively exploited?

Not that we know of. CVE-2025-15311 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.16% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.

Q: How severe is CVE-2025-15311?

CVE-2025-15311 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2025-15311 affect?

Published advisories record a fix for tanos (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.8

CVSS v3

NVD

Description

Tanium addressed an unauthorized code execution vulnerability in Tanium Appliance.

CWE-150

How to fix

Remediation Available

tanosNVD

Affected:< 1.8.3.0146Fixed in:1.8.3.0146CVE-2025-15311derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.16%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Vendor Advisory1

security.tanium.com

Related Vulnerabilities

Other CWE-150 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-0899	Critical	9.8	11%	-	Fix
CVE-2025-55754	Critical	9.6	10%	-	Fix
CVE-2021-25310	High	8.8	4.6%	-	-
CVE-2020-6932	Critical	10.0	3.6%	-	-
CVE-2024-28085	Low	3.3	2.2%	-	Fix
CVE-2022-30123	Critical	10.0	1.8%	-	Fix

Common questions

How do I fix CVE-2025-15311?

Upgrade tanos to 1.8.3.0146 or later.

Is CVE-2025-15311 being actively exploited?

Not that we know of. CVE-2025-15311 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.16% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.

How severe is CVE-2025-15311?

CVE-2025-15311 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-15311 affect?

Published advisories record a fix for tanos (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2025-15311

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-10.