Dashboard / CVE-2026-83646

CVE-2026-83646

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 45/100
Published: 2026-10-13 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Scope Change

CVSS Vector Breakdown

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

Description

Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.

Weakness Classification (1)

Affected Software (18)

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 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33650
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33650

References & Advisories (1)

Bug Bounty Relevance

45 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

4.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.42%
Raw Score 0.004170
Percentile 36.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00417
2026-10-28
0.00417

Intelligence Sources

mitre ref →

External Links