CVE-2025-49693 is a high-severity double free vulnerability in the Microsoft Brokering File System, affecting multiple versions of Windows 11 and Windows Server. An authenticated local attacker can exploit this flaw to achieve privilege escalation, gaining full control over the compromised system. With a CVSS score of 7.8, the vulnerability presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While there is no public exploit code or active exploitation reported, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.0.22621.5624CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* | ||
< 10.0.22631.5624CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* | ||
< 10.0.26100.4652CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* | ||
< 10.0.25398.1732CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* | ||
< 10.0.26100.4652CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.