Microsoft Edge: multiple vulnerabilities | 09/16
The HKCERT advisory confirms that CVE-2026-87491 has been exploited in the wild. Check the impact against your product and deployment conditions.
Basis: the official source labels this critical. GDMME follow-up priority uses official ratings and headline/summary rules. It is not a CVSS score or official vulnerability rating, and does not confirm that your business is affected.
Source severity
極高度風險（HKCERT）
Affected scope
Scope listed in the advisory: Versions earlier than Microsoft Edge 153.0.4234.32.
Official recommendations
Automatically extracted recommendation passages from the official source, retained in the source language. Check the complete advisory.
- 在安裝軟體之前 請先瀏覽供應商之網站 以獲得更多詳細資料
- 安裝軟件供應商提供的修補程式：
- 更新至 153.0.4234.32 或之後版本
The last successful extraction is used here. Check the official source for the latest content.
Source text collected (Hong Kong time)：2026/10/12 02:44 HKT
官方原文建議自動摘錄 未作逐篇人工分析或翻譯；請核對完整公告、現行版本及適用性
GDMME recommended actions
GDMME recommendations · automatically organised from explicit products and source signals, without individual human analysis. Confirm applicability against vendor guidance and your environment.
- Locate Microsoft Edge deployments, running versions and service owners in your inventory or management console; compare them with the vendor applicability criteria. A named product does not mean every deployment is affected.
- For Microsoft Edge, confirm that updates are applied through central management or device checks. When the vendor requires it, reopen the browser/application or restart the device, then verify the running version rather than merely the downloaded update.
- Once Microsoft Edge applicability is confirmed, check the official excerpt and complete vendor patch/mitigation instructions. Record before/after versions, test results and rollback steps; do not install updates solely from a news headline.
Automatically organised (Hong Kong time)：2026/10/12 03:05 HKT
Educational information only. Confirm affected versions, mitigations and exploitation status with the original vendor advisory. Reports do not imply that GDMME equipment blocks every vulnerability.