Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-03-15. Ransomware campaign use: Known.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-04-05. 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: 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: version 1709 (Core Installation)
- affected: version 1803 (Core Installation)
- affected: 2019
- affected: 2019 (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
CVE Program record ↗ · Download tracked evidence as JSON
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841
- https://www.exploit-db.com/exploits/46683/
- http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html
- https://www.zerodayinitiative.com/advisories/ZDI-19-360/
- http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html
- http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0841
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": 0.414,
"percentile": 0.98694
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.414,
"percentile": 0.98686
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.414,
"percentile": 0.98684
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.414,
"percentile": 0.98683
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.414,
"percentile": 0.98682
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.414,
"percentile": 0.9868
}06 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
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"datePublished": "2019-04-09T20:18:32.000Z",
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}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.414,
"percentile": 0.98679
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.414,
"percentile": 0.98678
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.414,
"percentile": 0.98675
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.414,
"percentile": 0.98674
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2019-0841",
"cwes": [
"CWE-59"
],
"dateAdded": "2022-03-15",
"dueDate": "2022-04-05",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2019-0841",
"product": "Windows",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability"
}