SecuriTricks - CVE-2025-12464

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.

Product(s) Impacted

Vendor	Product	Versions
Qemu	E1000 Qemu	* *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	qemu	e1000	/	/	/	/	/	/	/	/
a	qemu	qemu	/	/	/	/	/	/	/	/

References

https://access.redhat.com/security/cve/CVE-2025-12464

https://bugzilla.redhat.com/show_bug.cgi?id=2408845

CVSS Score

6.2 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View Vector String

Timeline

Published: Oct. 31, 2025, 10:15 p.m.
Last Modified: Oct. 31, 2025, 10:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secalert@redhat.com

CVE-2025-12464