CVE-2025-21342: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 8.8)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Edge - Chromium
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2025-Feb
Released
2025-02-06
EPSS Score
0.90% (percentile: 75.7%)

FAQ

According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H), and integrity (I:H), and some loss of availability (A:L). What does that mean for this vulnerability? An attacker who successfully exploited this vulnerability could view sensitive information (Confidentiality), make changes to disclosed information (Integrity), and they might be able to force a crash within the browser tab (Availability). What is the version information for this release? Microsoft Edge Version Date Released Based on Chromium Version 133.0.3065.51 2/6/2025 133.0.6943.53/54 According to the CVSS metric, the attack vector is network (AV:N) and user interaction is required (UI:R). What is the target context of the remote code execution? Successful exploitation of this vulnerability requires the victim user to click a malicious link so that the attacker can initiate remote code execution on the renderer process.

Affected Products (1)

Browser

  • Microsoft Edge (Chromium-based)

Acknowledgments

<a href="https://x.com/eternalsakura13">Nan Wang(@eternalsakura13)</a>

Revision History

  • 2025-02-06: Information published.