CVE-2019-0555 Privilege escalation in n/a

High 7.8 Published Updated

An attacker can escape the browser AppContainer sandbox to gain elevated privileges on affected Windows systems.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-0555?

CVE-2019-0555 is a high-severity vulnerability in Microsoft Windows 10, published on 8 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in the Microsoft XmlDocument class that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft XmlDocument Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.

Weakness: CWE-862

Which versions are affected by CVE-2019-0555?

It affects 6 products.

Products include Microsoft Windows 10, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2019-0555?

No fix has been published for CVE-2019-0555 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-0555 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-0555 exists.

Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-x49p-2wmh-gxv5.

Is CVE-2019-0555 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free