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Tanium Enforce EUVDEUVD-2026-111264

| CVE-2026-116659 MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-10-27 Tanium GHSA-jrjr-9hvm-fm5f
4.3
CVSS 3.1 · Vendor: Tanium
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate to Tanium Enforce (PR:L)
  2. Exploit
    Send requests triggering uncontrolled resource consumption
  3. Execution
    Exhaust/degrade Enforce resources
  4. Impact
    Partial availability loss (A:L)

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource allocation limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires an authenticated session to Tanium Enforce (CVSS PR:L), so exploitation is limited to actors who already hold valid access to the Enforce component - it is not remote-unauthenticated. The specific feature, request, or configuration that triggers the uncontrolled resource consumption is not described in the available sources. Exploitation is further limited by impact scope: only availability is affected (A:L), with no confidentiality or integrity consequence, and only the Enforce component is in scope (S:U). Affected deployments are those running Enforce below the fixed builds 3.0.373, 2.9.736, or 2.10.778; patched instances are not exploitable. Updating to a fixed version is the remediation stated by the vendor.

Impact

This is a genuinely low-priority issue despite a NETWORK attack vector. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L) scores 4.3 (MEDIUM) and the only impact is low availability (A:L) - no confidentiality or integrity loss. PR:L means an attacker must already be authenticated to the Enforce component, which substantially limits the exploit population to users who already have some legitimate access. There is no EPSS score, no CISA KEV listing, and no public PoC or exploit reference in the supplied data, so all three exploitation-likelihood signals are either absent or negative. The vuln.today decision label is 'this_month', not 'act_now' or 'emergency', which is consistent with a modest, authenticated, availability-only defect. The signals are internally consistent - there is no conflict between a high CVSS and low real risk here, because the CVSS itself is only medium. The main caveat is mechanism: the description ('uncontrolled resource consumption', CWE-770) does not state how the resource exhaustion is triggered, so the exact request or operation that causes the DoS is not described in the available sources.

Exploit ScenarioDerived

An authenticated user with access to Tanium Enforce sends requests or input that cause unbounded resource consumption (CWE-770), degrading or exhausting availability of the Enforce component. The specific trigger is not described in the available sources. No public exploit code or PoC reference was provided, and the impact is limited to availability (A:L), so this is a degradation-of-service scenario rather than remote code execution or data exposure.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 28, 2026

An uncontrolled resource consumption flaw (CWE-770) in Tanium Enforce lets an authenticated user drive the Enforce component into resource exhaustion, degrading only the availability of that component. Deployments running Enforce 3.0 before 3.0.373, 2.9 before 2.9.736, or 2.10 before 2.10.778 are affected; patched builds are not exploitable. The CVSS score is 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L), reflecting a low-impact, availability-only issue that requires a valid Enforce session - no public exploit code has been identified at time of analysis, and the issue is not confirmed actively exploited (CISA KEV).

RemediationAI

Tanium has released fixes for every affected branch: upgrade Enforce to 3.0.373, 2.9.736 or 2.10.778 (or later within the respective branch), following the vendor advisory at https://security.tanium.com/TAN-2026-077. Updating to a fixed build is the remediation stated by the vendor and the only complete fix identified in the available sources; no separate workaround is documented. Because exploitation requires an authenticated Enforce session (PR:L), exposure is bounded by whoever currently holds Enforce credentials, so reviewing and trimming Enforce accounts to the operators who genuinely need them limits the pool of potential abusers while patching is scheduled - this is a scoping measure, not a substitute for the upgrade. The issue is availability-only (A:L) with no confidentiality or integrity consequence, and the vendor priority is this_month rather than immediate.

Affected VersionsENISA

Enforce 3.0 <3.0.373
Enforce 2.9 <2.9.736
Enforce 2.10 <2.10.778

Affected Packages

euvd enforce fix: 2.9.736, 2.10.778, 3.0.373

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The root cause class is CWE-770, Allocation of Resources Without Limits or Throttling, meaning some Enforce operation can consume memory, CPU, disk or other finite resources without an effective cap. In this case the consequence is confined to availability (A:L) with no confidentiality or integrity impact, and the scope remains unchanged (S:U), so the effect is expected to stay within the Enforce component rather than spreading to other Tanium modules. The CVSS vector places the attack vector at NETWORK with low attack complexity and low privileges (PR:L, no user interaction), so a party who already holds a valid Enforce session can reach the vulnerable path remotely. The specific feature, request or configuration that triggers the uncontrolled consumption is not described in the available sources, so the precise mechanism cannot be characterised beyond the resource-exhaustion class; deployments below the fixed builds are in scope, and patched instances are not exploitable.

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Severity by source

Vendor (Tanium) PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
vuln.today AI 4.3 MEDIUM

Authenticated access to Enforce (PR:L) over the network with no user interaction; impact is availability-only (A:L), with no confidentiality or integrity effect and no scope change.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (Tanium).

CVSS VectorVendor: Tanium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

1
Patch available
Oct 27, 2026 - 18:18 EUVD

DescriptionCVE.org

Tanium addressed an uncontrolled resource consumption vulnerability in Enforce.

Threat Intelligence Overview

EPSS Score
0.3%
Top 77% exploitable
Prevalence
Medium
specific module within an enterprise endpoint-management platform, not everywhere
Social Media
1
Sightings
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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