Detections
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Echo: qemu: security update to 1:10.0.13+ds-0+deb13u1+e3

high Tenable Self-Hosted Container Security Plugin ID 473220

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-93834)

Solution

Update the qemu library and its related packages to version 1:10.0.13+ds-0+deb13u1+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-93834

Plugin Details

Severity: High

ID: 473220

Version: Revision 1.1

Type: Local

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.24

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-93834

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/26/2026

Vulnerability Publication Date: 9/25/2026

Reference Information

CVE: CVE-2026-93834