CVE-2026-42980

high

Description

Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.

References

https://github.com/0xNDI/cvedetect

https://github.com/G4sp4rCS/CVE-2026-42980-POC

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42980

Details

Source: Mitre, NVD

Published: 2026-06-09

Updated: 2026-07-29

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0011