Dashboard / CVE-2026-88173

CVE-2026-88173

HIGH
MEDIUM Priority: 0.04 BB Relevance: 66/100
Published: 2026-10-13 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

Weakness Classification (2)

Affected Software (36)

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 2012 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26434
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23470
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23470
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
microsoft windows_10_1607 < 10.0.14393.9612
microsoft windows_10_1607 < 10.0.14393.9612
microsoft windows_10_1809 < 10.0.17763.9376
microsoft windows_10_1809 < 10.0.17763.9376
Showing 30 of 36 entries

References & Advisories (1)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.51%
Raw Score 0.005060
Percentile 43.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00506
2026-10-28
0.00506

Intelligence Sources

mitre ref →

External Links