Use After Free Affecting qemu-hw-usb-redirect package, versions <10.0.13-160000.2.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.41% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES1600-QEMUHWUSBREDIRECT-21003846
  • published16 Oct 2026
  • disclosed7 Oct 2026

Introduced: 7 Oct 2026

NewCVE-2026-93834  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 qemu-hw-usb-redirect to version 10.0.13-160000.2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-hw-usb-redirect package and not the qemu-hw-usb-redirect package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a malicious guest user to craft a fid path containing stale heap data, bypassing directory traversal restrictions and escaping the shared directory boundary. This can lead to arbitrary host file read/write and code execution (VM escape) as the QEMU process user.

CVSS Base Scores

version 3.1