Exploitation evidence
Known exploited · CISA KEV listed
Added 2021-11-03. Ransomware campaign use: Known.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-05-03. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Microsoft / Windows
Default status: Not specified
- affected: 7 for 32-bit Systems Service Pack 1
- affected: 7 for x64-based Systems Service Pack 1
- affected: 8.1 for 32-bit systems
- affected: 8.1 for x64-based systems
- affected: RT 8.1
- affected: 10 for 32-bit Systems
- affected: 10 for x64-based Systems
- affected: 10 Version 1607 for 32-bit Systems
- affected: 10 Version 1607 for x64-based Systems
- affected: 10 Version 1703 for 32-bit Systems
- affected: 10 Version 1703 for x64-based Systems
- affected: 10 Version 1709 for 32-bit Systems
- affected: 10 Version 1709 for x64-based Systems
- affected: 10 Version 1803 for 32-bit Systems
- affected: 10 Version 1803 for x64-based Systems
- affected: 10 Version 1803 for ARM64-based Systems
- affected: 10 Version 1809 for 32-bit Systems
- affected: 10 Version 1809 for x64-based Systems
- affected: 10 Version 1809 for ARM64-based Systems
- affected: 10 Version 1709 for ARM64-based Systems
Microsoft / Windows Server
Default status: Not specified
- affected: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)
- affected: 2008 R2 for Itanium-Based Systems Service Pack 1
- affected: 2008 R2 for x64-based Systems Service Pack 1
- affected: 2008 for 32-bit Systems Service Pack 2 (Core installation)
- affected: 2012
- affected: 2012 (Core installation)
- affected: 2012 R2
- affected: 2012 R2 (Core installation)
- affected: 2016
- affected: 2016 (Core installation)
- affected: version 1709 (Core Installation)
- affected: version 1803 (Core Installation)
- affected: 2019
- affected: 2019 (Core installation)
- affected: 2008 for Itanium-Based Systems Service Pack 2
- affected: 2008 for 32-bit Systems Service Pack 2
- affected: 2008 for x64-based Systems Service Pack 2
- affected: 2008 for x64-based Systems Service Pack 2 (Core installation)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.4523,
"percentile": 0.98803
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.4523,
"percentile": 0.98795
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.4523,
"percentile": 0.98793
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.4523,
"percentile": 0.98792
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.4523,
"percentile": 0.98791
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.4523,
"percentile": 0.9879
}06 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
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{
"status": "affected",
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{
"status": "affected",
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"status": "affected",
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{
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"status": "affected",
"version": "2012 (Core installation)"
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{
"status": "affected",
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"status": "affected",
"version": "2012 R2 (Core installation)"
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"status": "affected",
"version": "2016"
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"status": "affected",
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"status": "affected",
"version": "2019"
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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"version_value": "2008 R2 for x64-based Systems Service Pack 1 (Core installation)"
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"version_value": "2008 R2 for Itanium-Based Systems Service Pack 1"
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"datePublished": "2019-04-09T20:15:28.000Z",
"dateReserved": "2018-11-26T00:00:00.000Z",
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}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.4523,
"percentile": 0.98789
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.4523,
"percentile": 0.98789
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.4523,
"percentile": 0.98787
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.4523,
"percentile": 0.98786
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2019-0803",
"cwes": [],
"dateAdded": "2021-11-03",
"dueDate": "2022-05-03",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2019-0803",
"product": "Win32k",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Microsoft Win32k contains an unspecified vulnerability due to it failing to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Win32k Privilege Escalation Vulnerability"
}