CVE-2025-49677

Published Jul 8, 2025

Last updated 3 days ago

Overview

Description: Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
Source: secure@microsoft.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7
Impact score: 5.9
Exploitability score: 1
Vector string: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

secure@microsoft.com: CWE-416

Hype score: Not currently trending

CVE-2025-49677 Microsoft Brokering File System Elevation of Privilege https://t.co/RZVgfvpwDV via @YouTube
@nu11secur1ty1
9 Jul 2025
31 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "76FEE1E8-EB22-4E01-86D7-13B35F9D2876",
            "versionEndExcluding": "10.0.22621.5624"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.