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CVE-2019-1130 is a local elevation of privilege vulnerability in the Windows AppX Deployment Service (AppXSVC). The flaw is caused by improper handling of hard links during privileged file operations, resulting in improper link resolution. An attacker with local access can abuse the service’s link handling to redirect operations performed by AppXSVC toward unintended files or resources, enabling privilege escalation. Microsoft describes the issue as a Windows Elevation of Privilege Vulnerability distinct from CVE-2019-1129.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A historical AppX Deployment Service vulnerability involving improper link resolution, cited as similar prior Microsoft security history.
An elevation of privilege vulnerability in Windows.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.