To exploit the vulnerability, the user must click a specially crafted URL. In an email attack scenario, an attacker could send an email message containing the specially crafted URL to the user in an attempt to convince the user to click it.
In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of enticement in an email or instant message, and then convince the user to interact with content on the website.
The update addresses the vulnerability by correcting how Microsoft Edge parses HTTP responses.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Edge (EdgeHTML-based) | affected |
|
Configuration 1 [-]
| AND |
|
No data.
No data available yet.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2020-11951 | A spoofing vulnerability exists when Microsoft Edge does not properly parse HTTP content, aka 'Microsoft Edge Spoofing Vulnerability'. |
Wed, 19 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A spoofing vulnerability exists when Microsoft Edge does not properly parse HTTP content, aka 'Microsoft Edge Spoofing Vulnerability'. | A spoofing vulnerability exists when Microsoft Edge does not properly parse HTTP content. An attacker who successfully exploited this vulnerability could trick a user by redirecting the user to a specially crafted website. The specially crafted website could either spoof content or serve as a pivot to chain an attack with other vulnerabilities in web services. To exploit the vulnerability, the user must click a specially crafted URL. In an email attack scenario, an attacker could send an email message containing the specially crafted URL to the user in an attempt to convince the user to click it. In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of enticement in an email or instant message, and then convince the user to interact with content on the website. The update addresses the vulnerability by correcting how Microsoft Edge parses HTTP responses. |
| Title | Microsoft Edge Spoofing Vulnerability | |
| CPEs | cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:* | |
| References |
| |
| Metrics |
cvssV3_1
|
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-08-19T16:33:27.801Z
Reserved: 2019-11-04T00:00:00.000Z
Link: CVE-2020-1059
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-05-21T23:15:12.320
Modified: 2026-08-19T17:17:10.793
Link: CVE-2020-1059
Redhat
No data.
OpenCVE Enrichment
No data.