CVE-2026-62879CWE-306

CVE-2026-62879

Medium · published October 13, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

Missing authentication for critical function in Windows SmartScreen allows an authorized attacker to perform tampering locally.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00309 · 22.5th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-13T23:18Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62879 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:00Z
    Windows SmartScreen Tampering Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Windows SmartScreen Tampering Vulnerability
    cvelistv5