SEPTEMBER 20, 2026
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Case File

CVE-2026-64261

HIGH · CVSS 7.8 EPSS 0.16%

Source: NVD + CISA KEV + EPSS · Published 2026-07-25 · Last synced 2026-08-24

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's fuse-uring component, specifically in the `fuse_uring_async_stop_queues()` function, which is susceptible to a use-after-free condition due to improper reference management. This flaw could lead to potential denial-of-service attacks or arbitrary code execution, posing significant risks to system stability and security. Organizations utilizing Linux systems, particularly those leveraging the fuse-uring functionality, should prioritize patching this vulnerability to mitigate associated threats.

CVE
CVE-2026-64261
Severity
HIGH
CVSS
7.8
EPSS
0.16%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: Avoid use-after-free in fuse_uring_async_stop_queues fuse_uring_async_stop_queues() might run when the last reference on ring->queue_refs was already dropped. In order to avoid an early destruction a reference on struct fuse_conn is now taken before starting fuse_uring_async_stop_queues() and that reference is only released when that delayed work queue terminates.

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