CVE-2026-85890：Microsoft Edge（Chromium 版）遠端程式執行漏洞
CVE-2026-85890 - Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-85890 是一個雙重釋放漏洞，允許未授權攻擊者在 Microsoft Edge（Chromium 版）上執行任意程式。
- 漏洞型別：雙重釋放 (double free) 造成遠端程式執行。
此漏洞使未授權攻擊者可在網路上執行任意程式，提醒使用者即時安裝 2026 年 10 月安全更新，避免被利用造成系統被遠端控制。
Double free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Impact
Affected Products
The following products are affected by CVE-2026-85890
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
| ID | Vendor | Product | Action |
|---|---|---|---|
| 1 | Microsoft | edge | |
| 2 | Microsoft | edge_chromium |
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Apply October 2026 security updates promptly to address vulnerabilities.
- Install all October 2026 security updates.
- Verify successful installation of all updates.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-85890.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85890 |
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-85890 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-85890
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-85890 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-85890 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
十月. 29, 2026
Action Type Old Value New Value Added Description Double free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-415 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/85xxx/CVE-2026-85890.json">CVE-2026-85890</a> Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85890
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.