Microsoft Edge (Chromium-based) Spoofing Vulnerability

What is the version information for this release?
Stable: Stable, 121.0.2277.83: 121.0.2277.83, 1/25/2024: 1/25/2024, 121.0.6167.85/.86: 121.0.6167.85/.86, Extended Stable: Extended Stable, 120.0.2210.160: 120.0.2210.160, 1/25/2024: 1/25/2024, 120.0.6099.268: 120.0.6099.268

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker must send the user a malicious file and convince them to open it.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N), some loss of integrity (I:L) but have no effect on availability (A:N). How could an attacker impact the PDF File Signature?
An attacker could spoof the PDF signature stamp by tricking the user with a forgery when they open a digitally signed PDF and view the visual signature stamp.

Security updates
121.0.2277.83 — https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security