Ubuntu Linux CVE-2026-102966

MEDIUM

2026-10-02 vendor:ubuntu

View

Attack ChainAIDerived

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

Access

Insufficient data to determine attack chain
Exploit

Obtain Ubuntu advisory and NVD record
Impact

Reassess

Vulnerability Assessment

Exploitation Conditions	Exploitation conditions cannot be extracted - the CVE description is unavailable ('[Unknown description]') and no CVSS vector is provided, so no product feature, protocol, configuration setting, deployment mode, authentication level, or user-interaction requirement can be identified. Defenders must retrieve the Ubuntu Security Notice and NVD entry for the affected source package to determine prerequisites and limiting factors.
Impact	Risk cannot be meaningfully assessed from the provided data. No description, CVSS vector, CWE, EPSS score, KEV status, or POC information is available for CVE-2026-102966 - the only signal is a single source tag (vendor:ubuntu) indicating it was reported in the Ubuntu ecosystem. With no attack-vector, complexity, privilege, or impact metrics, it is impossible to distinguish a genuine priority from a high-CVSS-but-low-real-risk issue. There is no KEV listing and no POC reference in the input, so there is no evidence of active exploitation. All key decision signals are MISSING and must be obtained from the Ubuntu Security Notice (USN) / CVE Tracker and NVD before any prioritization decision can be made.
Exploit ScenarioDerived	No exploit scenario can be constructed because the vulnerability class, affected package, and attack vector are all unknown. No public exploit is identified in the provided data. Consult the Ubuntu CVE Tracker entry for the affected source package and vulnerability details before assessing attack feasibility.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet

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AnalysisAIv1 – Oct 02, 2026

CVE-2026-102966 is currently unassessable: the record carries no description, no CVSS score or vector, no CWE, and no patch or reference data, with the only provenance being that it was reported by vendor:ubuntu. As a result, the affected Ubuntu source package, the vulnerable component, the attack surface, and the privilege or interaction requirements are all unknown, and no statement can be made about what an attacker could achieve or which versions are exposed. No public exploit code, no proof-of-concept, and no CISA KEV entry are associated with this record at the time of analysis, but that absence reflects missing data rather than a positive assurance of safety.

RemediationAI

No remediation guidance can be issued from the available data because no fix version, patch reference, workaround, or advisory URL is provided; patch availability is not confirmed from the supplied intelligence and should not be assumed to be absent. The immediate action is to retrieve the Ubuntu Security Notice for CVE-2026-102966 from Canonical's security notice index (ubuntu.com/security/CVE-2026-102966 and the linked USN) and the NVD entry, then apply the exact fixed package versions named there via 'apt update && apt upgrade' or 'apt install --only-upgrade <package>', followed by a service or host restart if the package is a long-running daemon or shared library. Because the vulnerable component is unknown, no specific compensating control can be recommended - disabling a feature, blocking a port, or restricting an endpoint would all be guesswork; the only defensible interim posture is to keep Ubuntu systems on supported releases with unattended-upgrades or equivalent patch automation enabled, and to monitor for the USN publication. Re-assess this CVE as soon as description, CVSS vector, CWE, and reference data become available.

Affected ProductsAI

Affected products cannot be determined from the supplied data. The only attribution available is the reporting vendor, Ubuntu (Canonical), so the exposure is presumed to be limited to one or more Ubuntu source packages and their binary packages across supported releases; however, no package name, version range, Ubuntu release, or CPE string is provided, and no vendor advisory URL appears in the references. Until the corresponding Ubuntu Security Notice is located and the NVD record is enriched, no product-level scope statement - whether a single package, a desktop component, or a shared library used across many packages - can be made without speculation.

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Technical ContextAI · show details

There is insufficient information to describe the underlying technology, library, or protocol. The sole intelligence signal is the reporter identifier 'vendor:ubuntu', which indicates the issue was filed through Canonical's coordinated disclosure channel and therefore most likely affects one or more source packages shipped in Ubuntu (and possibly Debian-derived distributions), distributed as .deb packages and patched through Ubuntu Security Notices (USNs) rather than through upstream CVE metadata alone. No CWE is provided, so the root-cause class - memory corruption, injection, logic error, information disclosure, or otherwise - cannot be classified. No CPE data is present, so the affected product, distribution release (e.g., 20.04 LTS, 22.04 LTS, 24.04 LTS), and version range cannot be enumerated. Analysts should treat the Ubuntu Security Notice and the NVD entry as the authoritative sources and re-run assessment once the description, CVSS vector, and CWE are populated.

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Exploit and PoC references, threat intelligence from 22 sources

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DescriptionCVE.org

[Unknown description]

Threat Intelligence Overview

Data Quality

1 sources

Confidence: Low

CVE.org

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 N/A

Patch available No

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.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.