CVE-2015-7512

Name: CVE-2015-7512
Creator: NVD / NIST
Published: 2016-01-08T21:59:02.637+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9/10EPSS 7.73%

Last modified Jun 17, 2026

CVE-2015-7512 is a critical-severity vulnerability rated 9/10 on the CVSS scale. Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.. EPSS estimates a 7.73% chance of exploitation in the next 30 days.

Description

Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.

Metrics

CVSS 3.1

9/10

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

EPSS Probability

7.73%

93.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	<= 2.4.1	—
Qemu	Qemu	2.5.0	Rc0
Redhat	Enterprise Linux Desktop	6.0	—
Redhat	Enterprise Linux Eus	6.7	—
Redhat	Enterprise Linux Server	6.0	—
Redhat	Enterprise Linux Workstation	6.0	—
Redhat	Openstack	5.0	—
Redhat	Virtualization	3.0	—
Debian	Debian Linux	7.0	—
Debian	Debian Linux	8.0	—
Oracle	Linux	6	—

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201602-01Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201602-01Third Party Advisory

Timeline

Published: Jan 8, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7512?

How severe is CVE-2015-7512?

CVE-2015-7512 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 7.73% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7512?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-7512?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST