CVE-2015-7504

Name: CVE-2015-7504
Creator: NVD / NIST
Published: 2017-10-16T20:29:00.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2015-7504 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.64%

46.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	<= 2.4.1	—
Qemu	Qemu	2.5.0	Rc0
Xen	Xen	All versions	—
Debian	Debian Linux	7.0	—
Debian	Debian Linux	8.0	—

References

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/2015/11/30/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/78227Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034268Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-162.htmlMitigation, Patch, Vendor Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Patch, Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201604-03Patch, Third Party Advisory, VDB Entry
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/2015/11/30/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/78227Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034268Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-162.htmlMitigation, Patch, Vendor Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Patch, Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201604-03Patch, Third Party Advisory, VDB Entry

Timeline

Published: Oct 16, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7504?

How severe is CVE-2015-7504?

CVE-2015-7504 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7504?

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-2015-7504?

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

Scan your code now

Source: NVD / NIST