CVE-2025-21276 — Integer Underflow (Wrap or Wraparound) in Microsoft Windows 10 Version 1507

CWE-191 — Integer Underflow (Wrap or Wraparound)CWE-693 — Protection Mechanism Failure5 documents5 sources
Severity
7.5HIGHNVD
EPSS
6.8%
top 8.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
27
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+24 more
Timeline
PublishedJan 14

Description

Windows MapUrlToZone Denial of Service Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages26 packages

▶CVEListV5microsoft/windows_server_2008_service_pack_26.0.6003.0 — 6.0.6003.23070
▶CVEListV5microsoft/windows_server_2008_r2_service_pack_16.1.7601.0 — 6.1.7601.27520
▶NVDmicrosoft/windows< 10.0.14393.7699+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20890
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7699

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-cx2h-5vcq-pfj4: Windows MapUrlToZone Denial of Service Vulnerability↗2025-01-14
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CVEList
Windows MapUrlToZone Denial of Service Vulnerability↗2025-01-14
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📋Vendor Advisories

1
Microsoft
Windows MapUrlToZone Denial of Service Vulnerability↗2025-01-14
▶

🕵️Threat Intelligence

1
Bleepingcomputer
Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws↗2025-01-14
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CVE-2025-21276 — Integer Underflow (Wrap or Wraparound) | cvebase