CVE-2019-0841
Description
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.
CISA KEV
- Vendor
- Microsoft
- Product
- Windows
- Due date
- 2022-04-05
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Microsoft Windows - AppX Deployment Service Local Privilege Escalation (3)
Microsoft Windows - AppX Deployment Service Privilege Escalation
Microsoft Windows 10 < build 17763 - AppXSvc Hard Link Privilege Escalation (Metasploit)
Microsoft Windows - AppX Deployment Service Local Privilege Escalation (2)
Metasploit modules
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.