CVE-2023-21796: Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 8.3)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2023-Jan

Released

2023-01-12

Last Updated

2023-01-17

EPSS Score

0.20% (percentile: 42.5%)

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment. According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability? This vulnerability could lead to a browser sandbox escape. According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? The user would have to click on a specially crafted URL to be compromised by the attacker.

Affected Products (1)

Browser

• Microsoft Edge (Chromium-based) Extended Stable

Acknowledgments

K. Edward with PHi

Revision History

• 2023-01-12: Information published.
• 2023-01-17: Added Extended Stable build information. This is an informational change only.