CVE-2026-83648

MEDIUM
MEDIUM Priority: 0.08 BB Relevance: 63/100
Published: 2026-10-13 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

Affected Software (19)

VendorProductVersion
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
microsoft windows_10_21h2 < 10.0.19044.7807
microsoft windows_10_21h2 < 10.0.19044.7807
microsoft windows_10_21h2 < 10.0.19044.7807
microsoft windows_10_22h2 < 10.0.19045.7807
microsoft windows_10_22h2 < 10.0.19045.7807
microsoft windows_10_22h2 < 10.0.19045.7807
microsoft windows_11_23h2 < 10.0.22631.7652
microsoft windows_11_23h2 < 10.0.22631.7652
microsoft windows_11_24h2 < 10.0.26100.9711
microsoft windows_11_24h2 < 10.0.26100.9711
microsoft windows_11_25h2 < 10.0.26200.9711
microsoft windows_11_25h2 < 10.0.26200.9711
microsoft windows_11_26h1 < 10.0.28000.3231
microsoft windows_11_26h1 < 10.0.28000.3231
microsoft windows_11_26h2 < 10.0.26300.9711
microsoft windows_11_26h2 < 10.0.26300.9711
microsoft windows_server_2022 < 10.0.20348.5761
microsoft windows_server_2025 < 10.0.26100.33650

References & Advisories (1)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

1.23%
Raw Score 0.012310
Percentile 68.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01231
2026-10-28
0.01231

Intelligence Sources

mitre ref →
nvd ref →