CVE-2026-83928CWE-306

CVE-2026-83928

High · published October 13, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
46.9
In the wild
Unconfirmed
What it is

Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00577 · 46.9th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-13T23:20Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83928 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 1%
    epss
  • 13 OCT 18:59Z
    Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability
    cvelistv5