CVE-2026-69789CWE-122

CVE-2026-69789

High · published October 13, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
34.9
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00416 · 34.9th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-13T23:18Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69789 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:01Z
    Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
    cvelistv5
  • 13 OCT 19:01Z
    Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
    cvelistv5