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CVE-2026-42980 [High]

Curated 1 security research writeups, vulnerability advisories and exploitation analyses for CVE-2026-42980.

Vendor
Microsoft
Product
Windows NT OS Kernel / WMI
Affected versions
Microsoft Windows builds affected by the Windows NT OS Kernel WMI integer-underflow vulnerability; consult Microsoft security updates for fixed build details
CVSS
7.8
Coverage Span
2026-07-07
Reports
1 related reports

Associated Reports & Timeline

1.
CVE-2026-42980 PoC: Windows kernel WMI integer underflow local privilege escalation
github.com | vulnerability | High | | original ↗ | #public-poc | #kernel-security | #privilege-escalation | #windows-security
Disclosure repo for CVE-2026-42980: a Windows kernel WMI integer underflow exploited for local privilege escalation to NT AUTHORITY\SYSTEM, with C sources, build scripts and bilingual write-ups.
Why it matters: The public code turns a Windows kernel integer underflow into local escalation from a normal user to SYSTEM, making it relevant to authorized kernel research and patch validation. Reproduction should be limited to owned, isolated, recoverable systems, and Microsoft fixes should be applied promptly.