CVE-2026-83836CWE-122CWE-191

CVE-2026-83836

High · published October 13, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
37.6
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code locally.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00444 · 37.6th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2026-10-13T23:20Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83836 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 18:59Z
    Windows Event Tracing Remote Code Execution Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Event Tracing Remote Code Execution Vulnerability
    cvelistv5