Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach Tanium Server over network
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ExploitSend crafted resource-exhausting request
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ExecutionTrigger uncontrolled resource allocation
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ImpactDegrade server availability (DoS)
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 | No special conditions are documented beyond network reachability of the Tanium Server service - the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates remote, unauthenticated exploitation with no user interaction. The specific feature, protocol endpoint, or request type that triggers the resource exhaustion is not described in the available sources. Limiting factors: impact is confined to availability (A:L, no confidentiality or integrity loss), and exploitation requires that the attacker can reach the Tanium Server management service, which in many deployments is network-segmented and not internet-exposed. Affected deployments are those running Tanium Server below 7.7.3.8351, 7.8.2.1263, or 7.8.4.1399. |
| Impact | This is a medium-severity (CVSS 5.3) denial-of-service issue in Tanium Server, classified as CWE-770 (uncontrolled resource allocation). The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) indicates a network-reachable, low-complexity, unauthenticated attack with no user interaction and only limited availability impact - no confidentiality or integrity loss. The vuln.today decision label is 'this_month', signaling a patch-on-normal-cadence priority rather than an emergency. No EPSS score, no CISA KEV listing, and no public exploit were provided in the input, so there is no signal of active or widespread exploitation; the availability-only impact and the self-report by Tanium are consistent with a routine hardening fix rather than a high-urgency threat. The main risk-elevating factor is that exploitation is unauthenticated and network-based, meaning any actor who can reach the Tanium Server service could potentially degrade its availability. The description is sparse ('addressed a denial of service vulnerability'), so the exact trigger mechanism is not described in the available sources - the resource-exhaustion nature is inferred from the CWE-770 mapping, not from a detailed vendor writeup. Net assessment: a real but moderate priority - worth patching on a normal cycle, not a drop-everything emergency, absent any exploitation evidence. |
| Exploit ScenarioDerived | An attacker with network access to the Tanium Server service sends crafted or high-volume requests that cause uncontrolled resource consumption, degrading or disrupting the server's availability for legitimate administrative and endpoint-management operations. No authentication or user interaction is required per the CVSS vector. No public exploit code was identified in the provided data, and the precise triggering input is not described in the available sources. |
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Alert meAnalysisAIv1 – Oct 28, 2026
A remote, unauthenticated denial-of-service condition in Tanium Server lets an attacker exhaust server resources by sending crafted requests to the reachable management service, degrading availability only (CVSS 5.3, A:L). Deployments are affected if they run builds below 7.7.3.8351, 7.8.2.1263, or 7.8.4.1399, and patched builds are published for all three branches. No public exploit code or active exploitation has been identified in the supplied sources, so the practical risk is highest for internet-exposed or poorly segmented Tanium Server instances.
RemediationAI
Upgrade Tanium Server to the fixed build on the branch you run: 7.7.3.8351 for the 7.7.3 line, 7.8.2.1263 for the 7.8.2 line, or 7.8.4.1399 for the 7.8.4 line, per Tanium advisory TAN-2026-076 (https://security.tanium.com/TAN-2026-076), which is the authoritative source for patch availability and any installation notes. Because the vector is AV:N/PR:N with no documented compensating control, the practical interim measure is to restrict network reachability of the Tanium Server management interface to trusted administrative networks and Tanium-managed subnets, accepting that segmentation changes may disrupt legitimate operator and client traffic until the upgrade is completed.
Affected VersionsENISA
Affected Packages
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
Tanium Server is the central management and aggregation component of the Tanium endpoint management platform, handling client registration, question/action distribution, and operator console traffic. The flaw is classified as CWE-770 (Allocation of Resources Without Limits or Throttling), meaning the server allocates resources in response to requests without an effective cap or rate limit, so repeated or oversized requests can exhaust capacity and make the service unavailable. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms the attack surface is the network-facing service and requires no credentials or user interaction; the specific endpoint, protocol message, or request type that triggers the exhaustion is not described in the available sources. Impact is limited to availability - there is no confidentiality or integrity impact per the assessed vector - and exploitability in practice depends on whether an attacker can route traffic to the Tanium Server management service, which is commonly segmented to administrative networks.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Network-reachable, unauthenticated, low-complexity DoS with no user interaction; impact limited to partial availability loss, so C:N/I:N/A:L.
Primary rating from Vendor (Tanium).
CVSS VectorVendor: Tanium
Lifecycle Timeline
1DescriptionCVE.org
Tanium addressed a denial of service vulnerability in Tanium Server.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
SQL injection in the Tanium Asset module lets an authenticated, high-privilege user read and modify data in the underlyi
Unauthorized OS command execution in Tanium Connect allows an attacker holding low-privilege authenticated access to run
OS command injection in Tanium Connect lets an authenticated, low-privileged user execute arbitrary commands on the unde
Tanium addressed an improper input validation vulnerability in Deploy. [CVSS 8.8 HIGH]
Command injection in Tanium Certificate Manager allows an authenticated attacker with low-level access to execute unauth
Command injection in Tanium Threat Response allows an authenticated low-privilege attacker to execute unauthorized code
SQL injection in Tanium Threat Response (CVSS 3.1 base score 8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) allows a low-priv
Path traversal in Tanium Comply allows authenticated low-privileged network users to read files outside the module's int
Path traversal in Tanium Comply exposes all authenticated low-privilege users to a scope-changing arbitrary file write a
SQL injection in Tanium Comply (CWE-89) allows a network-accessible, unauthenticated attacker - contingent on user inter
Improper access controls (CWE-862, Missing Authorization) in Tanium Comply allow an authenticated low-privileged user to
Improper access controls in Tanium Comply allow an authenticated low-privilege user to perform unauthorized operations w
EUVD-2026-111244
GHSA-9xf3-8hf3-5f85
NVD
CVE.org
EPSS
Exploit-DB