CVE-2025-54917

Name: CVE-2025-54917
Creator: NVD / NIST
Published: 2025-09-09T17:16:04.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.84%

Last modified Jun 17, 2026

CVE-2025-54917 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Protection mechanism failure in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

Protection mechanism failure in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.84%

53.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 10 1507	< 10.0.10240.21128	—
Microsoft	Windows 10 1607	< 10.0.14393.8422	—
Microsoft	Windows 10 1809	< 10.0.17763.7792	—
Microsoft	Windows 10 21h2	< 10.0.19044.6332	—
Microsoft	Windows 10 22h2	< 10.0.19045.6332	—
Microsoft	Windows 11 22h2	< 10.0.22621.5909	—
Microsoft	Windows 11 23h2	< 10.0.22631.5909	—
Microsoft	Windows 11 24h2	< 10.0.26100.6508	—
Microsoft	Windows Server 2008	All versions	Sp2
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	—
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Server 2016	< 10.0.14393.8422	—
Microsoft	Windows Server 2019	< 10.0.17763.7792	—
Microsoft	Windows Server 2022	< 10.0.20348.4106	—
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1849	—
Microsoft	Windows Server 2025	< 10.0.26100.6508	—

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54917Vendor Advisory

Timeline

Published: Sep 9, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-54917?

Protection mechanism failure in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.

How severe is CVE-2025-54917?

CVE-2025-54917 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2025-54917?

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-2025-54917?

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

Scan your code now

Source: NVD / NIST