CVE-2026-85899 - Microsoft Edge（Chromium-based）提權漏洞
CVE-2026-85899 - Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Microsoft Edge 中的 CVE-2026-85899 允許授權攻擊者提升網路許可權。
此 CVE 影響 Microsoft Edge，提醒使用者即時安裝 2026 年 10 月安全更新，確保網路安全。
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.
Impact
Affected Products
The following products are affected by CVE-2026-85899
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 security updates released in October 2026 for affected products.
- Install October 2026 security updates.
- Review vendor advisories for specific details.
- Restart affected systems if required.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-85899.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85899 |
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-85899 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-2026-85899
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-2026-85899 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-85899 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.
-
New CVE Received by [email protected]
十月. 29, 2026
Action Type Old Value New Value Added Description Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Added CWE CWE-416 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/85xxx/CVE-2026-85899.json">CVE-2026-85899</a> Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85899
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.