Vulnerability intelligence
CVE-2026-42980
Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
High
EPSS — Exploit Probability
6.9%
Riskier than 94% of all CVEs
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
Patch available
Vendor fix published
1 article across 1 outlet · first covered Jul 21, 2026 · latest Jul 21, 2026
Coverage timeline
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Windows privilege escape bug CVE-2026-42980 patched by Microsoftsecurityonline.info · Jul 21, 2026