CVE-2026-81963 Windows Update Stack Elevation of Privilege Vulnerability
| Reporter | Title | Published | Views | Family All 26 |
|---|---|---|---|---|
 | September Microsoft Patch Tuesday | 9 Sep 202607:00 | – | avleonov |
 | The vulnerability of the Windows Update Stack component allows attackers to escalate their privileges. | 9 Sep 202600:00 | – | bdu_fstec |
 | CVE-2026-81963 | 8 Sep 202617:25 | – | circl |
 | Microsoft Windows Link Following Vulnerability | 8 Sep 202600:00 | – | cisa_kev |
 | CVE-2026-81963 | 8 Sep 202617:19 | – | cve |
 | EUVD-2026-73889 | 8 Sep 202617:19 | – | euvd |
 | September 8, 2026—KB5122871 (OS Build 26100.33438) | 8 Sep 202614:00 | – | mskb |
| September 8, 2026—KB5122880 (OS Build 22621.7582) | 8 Sep 202614:00 | – | mskb |
| September 8, 2026—KB5124008 (OS Builds 26200.9445 and 26100.9445) | 8 Sep 202614:00 | – | mskb |
| September 8, 2026—KB5124012 (OS Build 28000.2954) | 8 Sep 202614:00 | – | mskb |
10
[
{
"vendor": "Microsoft",
"product": "Windows 11 version 23H2",
"platforms": [
"ARM64-based Systems"
],
"versions": [
{
"version": "10.0.22631.0",
"lessThan": "10.0.22631.7582",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 Version 23H2",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.22631.0",
"lessThan": "10.0.22631.7582",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 Version 24H2",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.9445",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 Version 25H2",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26200.0",
"lessThan": "10.0.26200.9445",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 version 26H1",
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"versions": [
{
"version": "10.0.28000.0",
"lessThan": "10.0.28000.2954",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2025",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33438",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2025 (Server Core installation)",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33438",
"versionType": "custom",
"status": "affected"
}
]
}
]Data
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25 Sep 2026 21:39Current
CVSS 3.17.8
EPSS0.00393
SSVC