CVE-2025-21268 — MapUrlToZone Security Feature Bypass Vulnerability

Executive Summary

None

Overview

4.3

CVSS MEDIUM

Important

MS Severity

Not Exploited

MS Exploit Status

More Likely

MS Exploit Likelihood

Category Security Feature Bypass

Released Jan 14 2025

Last Updated Jan 14 2025

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.01917 — 0.77197 percentile

NVD CVSS 4.3 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

None

USER INTERACTION

Required

SCOPE

Unchanged

CONFIDENTIALITY

Low

INTEGRITY

None

AVAILABILITY

None

EXPLOIT CODE MATURITY

Proof-of-Concept

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 3.9

EPSS Score

0.01917

probability of exploitation in the next 30 days

0.77197 percentile - updated 2026-06-21

View on FIRST.org

Affected Products

27 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 10 for 32-bit Systems	`5050013 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 for x64-based Systems	`5050013 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1607 for 32-bit Systems	`5049993 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1607 for x64-based Systems	`5049993 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1809 for 32-bit Systems	`5050008 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1809 for x64-based Systems	`5050008 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for 32-bit Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for ARM64-based Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for x64-based Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for 32-bit Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for ARM64-based Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for x64-based Systems	`5049981 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 22H2 for ARM64-based Systems	`5050021 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 22H2 for x64-based Systems	`5050021 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 23H2 for ARM64-based Systems	`5050021 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 23H2 for x64-based Systems	`5050021 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 24H2 for ARM64-based Systems	`5050009 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 24H2 for x64-based Systems	`5050009 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5050063 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048710 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.0.6003.23070 1.007 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5050063 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048710 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.0.6003.23070 1.007 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 5050063 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048710 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.0.6003.23070 1.007 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5050063 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048710 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.0.6003.23070 1.007 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 5050049 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048695 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.1.7601.27520 1.003 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5050049 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048695 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.1.7601.27520 1.003 Yes None Windows Server 2012 5049994 (IE Cumulative) 5050004 (Monthly Rollup) Important Security Feature Bypass 5048699 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 1.003 6.2.9200.25273 Yes None Windows Server 2012 (Server Core installation) 5049994 (IE Cumulative) 5050004 (Monthly Rollup) Important Security Feature Bypass 5048699 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 1.003 6.2.9200.25273 Yes None Windows Server 2012 R2 5050048 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048735 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.3.9600.22371 1.002 Yes None Windows Server 2012 R2 (Server Core installation) 5050048 (Monthly Rollup) 5049994 (IE Cumulative) Important Security Feature Bypass 5048735 Base: 4.3 Temporal: 3.9 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C 6.3.9600.22371 1.002 Yes None Windows Server 2016	`5049993 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2016 (Server Core installation)	`5049993 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2019	`5050008 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2019 (Server Core installation)	`5050008 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2022	`5049983 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2022 (Server Core installation)	`5049983 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2022, 23H2 Edition (Server Core installation)	`5049984 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2025	`5050009 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2025 (Server Core installation)	`5050009 (Security Update)`	Important	Security Feature Bypass	Yes

Patches

8 patches

Article	Type	Restart
`5050013`	Security Update	Yes
`5049993`	Security Update	Yes
`5050008`	Security Update	Yes
`5049981`	Security Update	Yes
`5050021`	Security Update	Yes
`5050009`	Security Update	Yes
`5049983`	Security Update	Yes
`5049984`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

George Hughey

References

MSRC Advisory MITRE NVD