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.
History

Mon, 03 Nov 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 31 Oct 2025 21:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Qemu-kvm: stack buffer overflow in e1000 device via short frames in loopback mode
First Time appeared Redhat
Redhat advanced Virtualization
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-121
CPEs cpe:/a:redhat:advanced_virtualization:8::el8
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat advanced Virtualization
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2025-10-31T21:15:48.885Z

Updated: 2025-11-03T13:31:44.697Z

Reserved: 2025-10-29T11:52:28.148Z

Link: CVE-2025-12464

cve-icon Vulnrichment

Updated: 2025-11-03T13:10:54.217Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-31T22:15:32.977

Modified: 2025-11-04T15:41:31.450

Link: CVE-2025-12464

cve-icon Redhat

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