CVE-2026-83649CWE-125

CVE-2026-83649

Medium · published October 13, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
65.1
In the wild
Unconfirmed
What it is

Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01089 · 65.1th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-13T23:20Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83649 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 1%
    epss
  • 13 OCT 18:59Z
    Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
    cvelistv5