CVE-2026-87088

Local privilege escalation via quarantined filename injection

Published Sep 9, 2026 · Updated Sep 9, 2026

OS command injection in affected Tanium Enforce releases allows local users to gain elevated privileges during antivirus remediation. The remediation path passes a maliciously named file already present in antivirus quarantine into an OS command without adequately neutralizing command elements. Exploitation requires access to a Tanium Client system, placement of the crafted file in antivirus quarantine, and user interaction that causes a remediation action to process it.

CVSS severity7.0
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in affected Tanium Enforce releases allows local users to gain elevated privileges during antivirus remediation. The remediation path passes a maliciously named file already present in antivirus quarantine into an OS command without adequately neutralizing command elements. Exploitation requires access to a Tanium Client system, placement of the crafted file in antivirus quarantine, and user interaction that causes a remediation action to process it.

The record

CVE
CVE-2026-87088
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Tanium
Product
Tanium Enforce
Classifications
CWE-78, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.10 <2.10.760
  2. Affected versionversion=2.9 <2.9.718
  3. Affected versionversion=3.0 <3.0.346

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tanium · Tanium Enforceversion=2.10 <2.10.760; version=2.9 <2.9.718; version=3.0 <3.0.346

Published CVSS scores

7.0TaniumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo