CVE-2019-0797: Microsoft Win32k Privilege Escalation Vulnerability
CVE-2019-0797 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03
An elevation of privilege vulnerability exists in the Windows Win32k component due to improper handling of objects in memory. A local attacker who successfully exploits this vulnerability could execute arbitrary code in kernel mode, granting them full control over the affected system.
Yes. CVE-2019-0797 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2019-0797?
Critical severity, with a CVSS score of 7.8, published 3 November 2021.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809; Microsoft Windows 8.1; Microsoft Windows RT 8.1; Microsoft Windows Server 2012 R2; and 2 more.
Is there a fix for CVE-2019-0797?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-0797 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2019-0797?
Check whether you run Microsoft Win32K. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016 1709, 1803
Microsoft Windows Server 2019
Timeline
2019-04-09: disclosed: Initial analysis by NIST
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog