What is the CVSS score of CVE-2026-24925?

CVE-2026-24925 has a CVSS 3.1 base score of 7.3 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-24925?

Within 24 hours: Inventory all systems running the affected image module and assess exposure in production environments. Within 7 days: Implement network segmentation to restrict image module access, disable the image processing feature if business-critical, and deploy WAF rules to block malicious image uploads. Within 30 days: Monitor vendor security advisories for patch availability, conduct threat intelligence review for active exploitation, and establish a patching timeline upon vendor release.

Harmonyos CVE-2026-24925

HIGH

Heap-based Buffer Overflow (CWE-122)

2026-02-06 psirt@huawei.com

Buffer Overflow Heap Overflow Harmonyos Huawei

7.3

CVSS 3.1 · NVD

View

Attack ChainAIDerived

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

Access

Craft malicious image file
Delivery

Load image via vulnerable module
Exploit

Trigger heap buffer overflow
Execution

Corrupt adjacent memory
Impact

Denial of service or information disclosure

Vulnerability Assessment

Weakness	CWE CWE-122 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Heap buffer bounds checking MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list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	Local access to system required. Attacker must supply specially crafted image file to application using vulnerable image processing module with default configurations.
Impact	CVSS 7.3 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: None. User interaction: None.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Heap-based buffer overflow vulnerability in the image module. Impact: Successful exploitation of this vulnerability may affect availability. [CVSS 7.3 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

Classified as CWE-122 (Heap-based Buffer Overflow). Affects the image component of Harmonyos. Heap-based buffer overflow vulnerability in the image module. Impact: Successful exploitation of this vulnerability may affect availability.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.3 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

DescriptionCVE.org

Heap-based buffer overflow vulnerability in the image module. Impact: Successful exploitation of this vulnerability may affect availability.

Executive ViewAI

Why It Matters

A heap-based buffer overflow vulnerability in the image module poses a HIGH risk to system availability and could be exploited to cause service disruptions. While no patch is currently available, immediate mitigation steps are required to reduce organizational exposure and prevent potential attacks that could impact business operations.

Business Impact: High

Compensating Controls

Implement Web Application Firewall (WAF) rules to filter and validate image uploads; disable image processing functionality if not business-critical; segment network access to the image module to trusted sources only; implement strict input validation and file size limits on image uploads; monitor system logs for buffer overflow attempts; consider running the image module in sandboxed or containerized environments with resource restrictions.

Threat Intelligence Overview

EPSS Score

0.0%

Top 100% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

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 HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

Small

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

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.

Heap Overflow HIGH

A heap overflow occurs when a program writes data beyond the bounds of a buffer allocated in the heap memory region.