Security Advisory catalog CVE-2026-59126 Historical advisory recorded 28 Oct 2026 21:55:13 UTC. Read the latest advisory .
cve-program · CVE-2026-59126 Published
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.
Read the publisher's advisory Affected versions, risk and source history
cve-program · CVE-2026-59126 Published Windows 10 Version 21H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 10 Version 21H2",
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.19044.0",
"lessThan": "10.0.19044.7663",
"versionType": "custom",
"status": "affected"
}
]
} Windows 10 Version 22H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 10 Version 22H2",
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.19045.0",
"lessThan": "10.0.19045.7663",
"versionType": "custom",
"status": "affected"
}
]
} Windows 11 version 23H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 11 version 23H2",
"platforms": [
"ARM64-based Systems"
],
"versions": [
{
"version": "10.0.22631.0",
"lessThan": "10.0.22631.7517",
"versionType": "custom",
"status": "affected"
}
]
} Windows 11 Version 23H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 11 Version 23H2",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.22631.0",
"lessThan": "10.0.22631.7517",
"versionType": "custom",
"status": "affected"
}
]
} Windows 11 Version 24H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 11 Version 24H2",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.9168",
"versionType": "custom",
"status": "affected"
}
]
} Windows 11 Version 25H2 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 11 Version 25H2",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26200.0",
"lessThan": "10.0.26200.9168",
"versionType": "custom",
"status": "affected"
}
]
} Windows 11 version 26H1 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows 11 version 26H1",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.28000.0",
"lessThan": "10.0.28000.2704",
"versionType": "custom",
"status": "affected"
}
]
} Windows Server 2022 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows Server 2022",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.20348.0",
"lessThan": "10.0.20348.5499",
"versionType": "custom",
"status": "affected"
}
]
} Windows Server 2025 Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows Server 2025",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33296",
"versionType": "custom",
"status": "affected"
}
]
} Windows Server 2025 (Server Core installation) Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Microsoft",
"product": "Windows Server 2025 (Server Core installation)",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33296",
"versionType": "custom",
"status": "affected"
}
]
} Original source record · Cite this exact observation · Complete original publisher JSON