CVE-2026-83778EPSS p55.9%

CVE-2026-83778CVE-2026-83778

Description

Heap-based buffer overflow in Microsoft Internet Messaging API allows an unauthorized attacker to execute code over a network.

Scoring

CVSS 8.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.80% probability of exploitation · percentile 55.9% · 2026-10-16T12:02:51Z
Last modified2026-10-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.