Out-of-bounds Read in Microsoft Windows 10 Version 1607
CVE-2026-88159
Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21h2
- Microsoft Windows 10 Version 22h2
- Microsoft Windows 11 Version 23h2
- Microsoft Windows 11 Version 24h2
- Microsoft Windows 11 Version 25h2
- Microsoft Windows 11 Version 26h1
- Microsoft Windows 11 Version 26h2
- Microsoft Windows Server 2012
Weakness classification (CWE)
References
- Windows Background Intelligent Transfer Service (BITS) Remote Code Execution Vulnerability (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-88159?
- CVE-2026-88159 is a high-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2026-10-13.
- How severe is CVE-2026-88159?
- High severity. CVSS v3 base score is 8.8 out of 10.