CVE-2026-45657
Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.
CSIRTS triage
- What
- A use after free vulnerability allows an unauthorized attacker to execute code over a network.
- Who is affected
- All users of the Windows Kernel are affected.
- Urgency
- Immediate remediation is critical due to the critical severity and potential for exploitation.
- Action
- Update to the latest Windows Kernel version to mitigate this vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Elevated exploitation risk15.5% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalCVE-2026-45657: Windows Kernel Remote Code Execution Vulnerabilitymsrc · 2026-06-09
External references
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