Stack-based Buffer Overflow Affecting qemu package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-DEBIAN14-QEMU-13803644
  • published2 Nov 2025
  • disclosed31 Oct 2025

Introduced: 31 Oct 2025

NewCVE-2025-12464  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.

CVSS Base Scores

version 3.1