Elevation of Privilege Vulnerability in Microsoft Edge (Chromium-based)
CVE-2025-21399

7.4HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Edge Update Setup
Vendor
CVE Published:
17 January 2025

What is CVE-2025-21399?

A vulnerability in the update mechanism of Microsoft Edge (Chromium-based) allows an attacker to exploit this flaw to gain elevated privileges on the affected system. If successfully executed, this may enable unauthorized actions to be performed by the attacker, potentially compromising user data and system integrity. Users are encouraged to regularly update their browser and apply security patches to mitigate risks associated with this vulnerability.

Affected Version(s)

Microsoft Edge Update Setup Unknown 1.0.0.0 < 1.3.195.43

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-21399 : Elevation of Privilege Vulnerability in Microsoft Edge (Chromium-based)