CVE DATABASE / CVE-2019-0880
CVE-2019-0880
Microsoft Windows Privilege Escalation Vulnerability
CVSS 7.8 · HIGH
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2022-05-23.
Federal remediation due 2022-06-13.
Required action: Apply updates per vendor instructions.
Summary
A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls, aka 'Microsoft splwow64 Elevation of Privilege Vulnerability'.
CVSS 3.1 breakdown
| Base score | 7.8 (HIGH) |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Affected products
Microsoft windows 10 1507Microsoft windows 10 1607Microsoft windows 10 1703Microsoft windows 10 1709Microsoft windows 10 1803Microsoft windows 10 1809Microsoft windows 10 1903Microsoft windows 8.1Microsoft windows rt 8.1Microsoft windows server 1903Microsoft windows server 2012Microsoft windows server 2016Microsoft windows server 2019
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References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0880
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0880
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-29. Always verify against the vendor advisory before acting.