Unknown (Ubuntu) EUVD-2026-46436

| CVE-2026-47254 MEDIUM

Out-of-bounds Read (CWE-125)

2026-07-02 vendor:ubuntu

Buffer Overflow Information Disclosure Red Hat Libheif Struktur

6.1

CVSS 3.1 · Vendor: vendor:ubuntu

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Attack ChainAIDerived

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

Access

Cannot determine without vulnerability details.

Vulnerability Assessment

Weakness	CWE CWE-125 ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, read limits MITRE ATT&CK 1 technique across 1 tactic: Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	Unknown. No description or CVSS vector provided to extract specific prerequisites.
Impact	Risk assessment impossible without CVSS vector, EPSS score, KEV status, or exploit availability. No signals available to determine whether this is actively exploited, has public POC, or represents genuine operational risk. Operators cannot prioritize without basic vulnerability data.
Exploit ScenarioDerived	Exploitation scenario cannot be constructed without knowledge of attack vector, access requirements, and vulnerability mechanism.

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

Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 03, 2026

Insufficient data to analyze. CVE-2026-47254 is reported by Ubuntu but no description, CVSS score, vector, or CWE information is available. Cannot determine attack vector, affected product, version, or real-world impact without vulnerability details.

RemediationAI

No remediation guidance possible without knowing the affected product, version, or available patches. Contact Ubuntu security team for official advisory at https://ubuntu.com/security or search https://nvd.nist.gov for CVE-2026-47254 when vulnerability details are published.

Affected VersionsENISA

libheif < 1.22.0

Affected Packages

euvd libheif fix: 1.22.0

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.

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Technical ContextAI · show details

Cannot assess root cause or technical mechanism without CVE description. No CWE provided. Ubuntu as reporter suggests Linux distribution or Ubuntu-specific software impact, but specific product name, affected component, and vulnerability type remain unknown.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (vendor:ubuntu) PRIMARY 6.1 MEDIUM

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

SUSE 6.8 MEDIUM

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

Red Hat 6.1 MEDIUM

Primary rating from Vendor (vendor:ubuntu).

CVSS VectorVendor: vendor:ubuntu

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Lifecycle Timeline

1

CVSS changed

Jul 21, 2026 - 22:26 NVD

6.1 (MEDIUM)

DescriptionCVE.org

[Unknown description]

Threat Intelligence Overview

EPSS Score

0.2%

Top 95% exploitable

Data Quality

6 sources

Confidence: High

EUVD

CVE.org

EPSS Vendor

GitHub

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 0.2%

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

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

No

Human Impact· derived

Medium

Priority Score

30

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +30

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information Disclosure MEDIUM

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

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Same weakness CWE-125 – Out-of-bounds Read

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CVE-2016-4523 HIGH

CVE-2024-48456 HIGH POC

CVE-2024-48457 HIGH POC

Same technique Buffer Overflow

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CVE-2011-2462 CRITICAL POC

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CVE-2009-0927 HIGH POC

CVE-2012-1889 HIGH POC

Vendor StatusVendor

SUSE

Severity: Moderate

Product	Status
Image SLES-SAP-Azure Image SLES-SAP-Azure-3P Image SLES-SAP-BYOS-Azure Image SLES-SAP-BYOS-EC2 Image SLES-SAP-BYOS-GCE Image SLES-SAP-EC2 Image SLES-SAP-GCE Image SLES-SAPCAL-Azure Image SLES-SAPCAL-EC2 Image SLES-SAPCAL-GCE	Affected
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Desktop Applications 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7	Fixed
SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP applications 16.0	Fixed
SUSE Linux Enterprise Server 16.1	Fixed

References

Advisories & patches

ADVISORY https://ubuntu.com/security/notices/USN-8526-1 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:22153/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:2622/ REF https://github.com/strukturag/libheif/security/advisories/GHSA-wqjg-4x9g-6cvg

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