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EPSS 0.5%top 61%

CVE-2026-45489: CWE-749: Exposed Dangerous Method or Function in Microsoft Microsoft Edge (Chromium-based)

0
Medium
Published: 07/03/2026 (07/03/2026, 20:35:36 UTC)
Source: GCVE Database
Vendor/Project: Microsoft
Product: Microsoft Edge (Chromium-based)

Description

CVE-2026-45489 is a medium severity spoofing vulnerability in Microsoft Edge (Chromium-based) identified as CWE-749 (Exposed Dangerous Method or Function) and CWE-290. The vulnerability allows an attacker to potentially spoof content or functionality within the browser. An official fix is available from Microsoft to address this issue.

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Affected software

Affected versions
=1.0.0.0

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/31/2026, 00:58:50 UTC

Technical Analysis

This vulnerability in Microsoft Edge (Chromium-based) involves an exposed dangerous method or function that can be exploited to perform spoofing attacks. The CVSS 3.1 base score is 6.5, indicating a medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality impact but no integrity or availability impact. Microsoft has released an official fix to remediate this vulnerability.

Potential Impact

Successful exploitation could allow an attacker to spoof content or functionality in Microsoft Edge, potentially misleading users or causing them to interact with malicious content. The confidentiality impact is high, but integrity and availability are not affected. No known exploits are currently reported in the wild.

Mitigation Recommendations

An official fix from Microsoft is available and should be applied to remediate this vulnerability. Users and administrators should update Microsoft Edge to the patched version as soon as possible to mitigate the risk.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Microsoft Security Response Center
Advisory Id
msrc_CVE-2026-45489
Cve Count
1
Additional Cves
[]
Cvss Version
null
Remediation Level
official-fix

Threat ID: 6a54ae1c68715ace438fa269

Added to database: 07/13/2026, 09:21:32 UTC

Last enriched: 07/31/2026, 00:58:50 UTC

Last updated: 07/31/2026, 19:55:52 UTC

Views: 163

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