CVE-2026-88146
HighCVSS 7.0Summary
A race condition due to improper synchronization of a shared resource in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with valid credentials could exploit the race condition to escalate privileges, potentially leading to system compromise.
Recommendation
Install the latest Microsoft patches for BITS and restrict the ability to run unauthorized local processes.
Other vulnerabilities in Windows Background Intelligent Transfer Service (BITS)
See all- CVE-2026-88173High
Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
- CVE-2026-88159High
Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
- CVE-2026-88152High
A use after free vulnerability in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-88142High
A use after free vulnerability in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
- CVE-2026-88121High
Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.
- CVE-2026-88118High
Integer overflow or wraparound in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-85848High
Heap-based buffer overflow in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-85843High
Use of uninitialized resource in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-85832High
Heap-based buffer overflow in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

