What is the CVSS score of CVE-2025-49713?

CVE-2025-49713 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2025-49713?

Yes, a public proof-of-concept exploit is available for CVE-2025-49713. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-49713?

Within 24 hours: Identify all Edge installations via endpoint management tools and document current versions. Within 7 days: Deploy the latest stable Microsoft Edge patch via your standard update mechanism (Microsoft releases Chromium security updates on a regular cadence; verify the specific patched version at microsoft.com/edge). Within 30 days: Audit deployment compliance and confirm 100% of Edge installations are updated; consider temporary policy restrictions on untrusted websites if patch deployment lags.

Chrome CVE-2025-49713

Q: Which versions of Chrome are affected by CVE-2025-49713?

Microsoft Edge (Chromium-based) contains a type confusion vulnerability (CVSS 8.8) that permits unauthenticated remote code execution when users visit a malicious webpage.. A patch is available.

EUVD-2025-19745 HIGH

Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)

2025-07-02 secure@microsoft.com

Authentication Bypass Chrome Google Memory Corruption Microsoft Edge Chromium

8.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-843 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Type safety enforcement MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with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
Impact	CVSS score of 8.8 (HIGH).

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

Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 01:55 CVSS 8.8

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

Microsoft Edge (Chromium-based) 1.0.0.0 <138.0.3351.65

Affected Packages

euvd microsoft_edge_chromium_based fix: 138.0.3351.65

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

This vulnerability is classified as Access of Resource Using Incompatible Type (Type Confusion) (CWE-843).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:35 EUVD-patch-fix

executive summary

Patch available

Apr 16, 2026 - 05:29 EUVD

138.0.3351.65

PoC Detected

Jul 08, 2025 - 16:25 vuln.today

Public exploit code

CVE Published

Jul 02, 2025 - 18:15 nvd

HIGH 8.8

Executive ViewAI

Why It Matters

Microsoft Edge (Chromium-based) contains a type confusion vulnerability (CVSS 8.8) that permits unauthenticated remote code execution when users visit a malicious webpage. This affects all employees and contractors using Edge as their primary browser, creating direct risk to data confidentiality, system integrity, and operational continuity across the organization.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible, implement network controls: block or throttle access to untrusted external websites via proxy/firewall, enforce browser security policies (e.g., restrict script execution for lower-trust domains), and educate users to avoid clicking suspicious links. These are temporary measures only and do not mitigate the vulnerability itself.

Threat Intelligence Overview

EPSS Score

0.4%

Top 42% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

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 HIGH

CISA KEV No

Public POC Yes

EPSS 0.4%

Patch available Yes

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

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Memory Corruption HIGH

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.