CVE-2026-83504CWE-367

CVE-2026-83504

Medium · published October 13, 2026

CVSS v3.1
4.7
EPSS
0%
Percentile
14.7
In the wild
Unconfirmed
What it is

Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows an authorized attacker to disclose information locally.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00244 · 14.7th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2026-10-13T23:19Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83504 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 18:59Z
    Windows SmartScreen Information Disclosure Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows SmartScreen Information Disclosure Vulnerability
    cvelistv5