CVE-2026-85909CWE-822

CVE-2026-85909

Medium · published October 13, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
32.7
In the wild
Unconfirmed
What it is

Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information 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:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00396 · 32.7th percentile
Weakness
CWE-822 · Untrusted Pointer Dereference
Published
2026-10-13T23:21Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85909 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:01Z
    Windows Universal Disk Format File System Driver (UDFS) Information Disclosure Vulnerability
    cvelistv5
  • 13 OCT 19:01Z
    Windows Universal Disk Format File System Driver (UDFS) Information Disclosure Vulnerability
    cvelistv5