CVE-2019-1476 is an elevation of privilege vulnerability in the Windows AppX Deployment Service (AppXSVC) that improperly handles hard links, affecting Windows 10, Windows Server 2016, and Windows Server 2019. This vulnerability has a CVSS score of 7.8 (High), indicating a local attack vector with low complexity, allowing an attacker to achieve high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a denial-of-service exploit (EDB-47768) exists, and it has received limited community discussion and media coverage, including a mention in Microsoft's December 2019 Patch Tuesday fixes.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1607CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | ||
1709CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:* | ||
1803CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | ||
1809CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | ||
1903CPE matchmatch criteria | cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.