Medium severity · published May 18, 2026
CVE-2026-45494
Microsoft Edge (Chromium-based) Spoofing Vulnerability
6.1
CVSS
0.3%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Microsoft Edge (Chromium-based) · Microsoft
1.0.0.0 before 148.0.3967.70 · source: vendor
EC
Edge Chromium · Microsoft
before 148.0.3967.70 · source: NVD
In the news
VulnerabilityMedium
ZDI-26-330: (Pwn2Own) Microsoft Edge Navigation Handling Universal Cross-Site Scripting Vulnerability
This vulnerability allows remote attackers to execute arbitrary cross-origin script on affected installations of Microsoft Edge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 5.0. The following CVEs are assigned: CVE-2026-45494.
Jun 4, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45494
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45494
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45494
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