CVE-2019-1322
HighExploitedPublic exploitAn elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'.
Published Oct 10, 2019 · Updated Oct 29, 2025
Key Facts
Patch immediately- CVE-2019-1322 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Windows 10 1803 (Microsoft), Windows 10 1809 (Microsoft), Windows 10 1903 (Microsoft) and 9 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 27, 2020 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 19% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
19%
Higher than 97.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-1322 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1320, CVE-2019-1340.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 15, 2022 | Apr 5, 2022 | Known |
| Industry KEV feed | Mar 27, 2020 | Apr 5, 2022 | Known |
| CIRCL KEV | Mar 15, 2022 | Apr 5, 2022 | Known |
| ENISA EUVD | Mar 15, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
18 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 1803Microsoft | See advisory | n/a |
| Windows 10 1809Microsoft | See advisory | n/a |
| Windows 10 1903Microsoft | See advisory | n/a |
| Windows Server 1803Microsoft | See advisory | n/a |
| Windows Server 1903Microsoft | See advisory | n/a |
Timeline
Publicly disclosed
Oct 10, 2019
Added to Industry KEV feed
Mar 27, 2020
Added to CISA KEV
Mar 15, 2022
Added to CIRCL KEV
Mar 15, 2022
Added to ENISA EUVD
Mar 15, 2022
Last updated
Oct 29, 2025
References
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1322
- exploithttp://packetstormsecurity.com/files/155723/Microsoft-UPnP-Local-Privilege-Elevation.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitMSF comahawk.rb
FAQ
Common Questions.
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'.
Affected: Windows 10 1803 (Microsoft); Windows 10 1809 (Microsoft); Windows 10 1903 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 27, 2020 and is known to be used in ransomware campaigns.
Yes. It was added on Mar 15, 2022 with a federal remediation due date of Apr 5, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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