Dashboard / CVE-2026-83670

CVE-2026-83670

HIGH
MEDIUM Priority: 0.08 BB Relevance: 75/100
Published: 2026-10-13 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: None
A: None

Description

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

Weakness Classification (1)

Affected Software (63)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7807
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7807
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7807
Microsoft Windows 11 Version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 Version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 Version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.9711
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.9711
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.9711
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.9711
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.9711
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.9711
Microsoft Windows 11 Version 26H2 10.0.26300.0 < 10.0.26300.9711
Microsoft Windows 11 Version 26H2 10.0.26300.0 < 10.0.26300.9711
Microsoft Windows 11 Version 26H2 10.0.26300.0 < 10.0.26300.9711
Microsoft Windows 11 version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.3231
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.3231
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.3231
Showing 30 of 63 entries

References & Advisories (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

1.09%
Raw Score 0.010920
Percentile 65.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01092
2026-10-28
0.01092

Intelligence Sources

mitre ref →

External Links