CVE-2026-83670CWE-125

CVE-2026-83670

High · published October 13, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
61.3
In the wild
Unconfirmed
What it is

Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00964 · 61.3th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-13T23:20Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83670 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 1%
    epss
  • 13 OCT 19:00Z
    Function Discovery Service (fdwsd.dll) Information Disclosure Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Function Discovery Service (fdwsd.dll) Information Disclosure Vulnerability
    cvelistv5