CVE-2025-49677

Name: CVE-2025-49677
Creator: NVD / NIST
Published: 2025-07-08T17:15:52.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2025-49677 is a high-severity vulnerability rated 7/10 on the CVSS scale. Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11 22h2	< 10.0.22621.5624

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49677Vendor Advisory

Timeline

Published: Jul 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-49677?

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

How severe is CVE-2025-49677?

CVE-2025-49677 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2025-49677?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-49677?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST