CVE-2026-69762

CVE-2026-69762 is a stack-based buffer overflow (CWE-121) in the Windows Win32K component of Microsoft Windows. Per the CVSS vector, the flaw can be triggered over a network by an authenticated attacker with low privileges, with low attack complexity and user interaction required. A successful exploit allows the attacker to elevate privileges on the target Windows system, with high impact to confidentiality, integrity, and availability. All Windows installations on affected builds are potentially exposed, although the available data does not enumerate the specific affected versions. Exploitation status: not in CISA's KEV, no public proof-of-concept is known, and EPSS estimates only a 0.7% probability of exploitation within 30 days.

What to do: Apply the Windows security update addressing CVE-2026-69762 as soon as Microsoft publishes it, and verify the applicable KB/build for each OS version against Microsoft's advisory, since specific affected builds are not listed in this data. In the meantime, reduce exposure by limiting network logon by low-privileged users on Windows hosts that face untrusted networks (e.g., RDS/terminal servers), since exploitation requires only low privileges plus user interaction. No in-the-wild exploitation or public PoC is currently known; monitor Microsoft's advisory and the CISA KEV for status changes.