Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Released: Feb 6, 2025
- Assigning CNA
- Microsoft
- CVE.org link
- CVE-2025-21342
- Impact
- Remote Code Execution
- Max Severity
- Important
- Weakness
- CVSS Source
- Microsoft
- Vector String
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
- Metrics
- CVSS:3.1 8.8 / 7.7Base score metrics: 8.8 / Temporal score metrics: 7.7
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Exploit Code Maturity
Unproven
Remediation Level
Official Fix
Report Confidence
Confirmed
Please see Common Vulnerability Scoring System for more information on the definition of these metrics.
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
- Publicly disclosed
- No
- Exploited
- No
- Exploitability assessment
- Exploitation Less Likely
FAQ
According to the CVSS metrics, successful exploitation of this vulnerability could lead to a high loss of confidentiality (C:H), and integrity (I:H) and some loss of availability (A:L). What is the impact of 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.
Acknowledgements
- Nan Wang(@eternalsakura13)
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
- Security Update
- 133.0.3065.51
Disclaimer
Revisions
Information published.