PT-2024-1491 · Microsoft · Edge

Jun Kokatsu + 1 · Published 2024-01-30 · Updated 2025-12-12 · CVE-2024-21388

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions Microsoft Edge (Chromium-based) versions prior to 121.0.2277.83

Description The issue is related to the exploitation of Microsoft Edge's Marketing API, allowing attackers to covertly install browser extensions without user consent. This could lead to a privilege escalation threat. The vulnerability was actively exploited and has been patched by Microsoft. Users are advised to update to the latest version to ensure a secure browsing experience.

Recommendations For versions prior to 121.0.2277.83, update to version 121.0.2277.83 or later to resolve the issue. As a temporary workaround, consider restricting access to the Marketing API until a patch is applied. Avoid using the private API intended for marketing purposes in the affected browser versions.

Exploit

Fix

RCE

Weakness Enumeration

CWE-254

CWE-20

Related Identifiers

BDU:2024-00999

CVE-2024-21388

Affected Products

Edge

References · 52

• 🔥 https://github.com/d0rb/CVE-2024-21388 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-21388 · Security Note
• https://osv.dev/vulnerability/CVE-2024-21388 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21388 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00999 · Security Note
• https://twitter.com/Dinosn/status/1773052844855205931 · Twitter Post
• https://twitter.com/ohhara_shiojiri/status/1772974989005791626 · Twitter Post
• https://t.me/cybersecuritytechnologies/11112 · Telegram Post
• https://twitter.com/fletch_ai/status/1773184993482694658 · Twitter Post
• https://twitter.com/RedPacketSec/status/1752634059904176552 · Twitter Post
• https://twitter.com/ComputerPunks/status/1752381924457554037 · Twitter Post
• https://cybersecurity-help.cz/vdb/SB2024012607 · Note
• https://twitter.com/YourAnonRiots/status/1773855154799792331 · Twitter Post
• https://twitter.com/hetmehtaa/status/1778167633982185741 · Twitter Post
• https://t.me/ckure/14076 · Telegram Post