CVE-2026-85856CWE-122

CVE-2026-85856

High · published October 13, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
28.9
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Windows Internet Connection Sharing (ICS) allows an authorized attacker to execute code over an adjacent network.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00363 · 28.9th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-13T23:21Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85856 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:00Z
    Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
    cvelistv5