CVE-2015-8666

Name: CVE-2015-8666
Creator: NVD / NIST
Published: 2017-04-11T19:59:00.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.9/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2015-8666 is a high-severity vulnerability rated 7.9/10 on the CVSS scale. Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.

Metrics

CVSS 3.1

7.9/10

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

EPSS Probability

0.43%

34.6th 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
Debian	Debian Linux	8.0	—

References

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=d9a3b33d2c9f996537b7f1d0246dee2d0120cefb
http://www.openwall.com/lists/oss-security/2015/12/24/1Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/79670Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1283722Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Third Party Advisory
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=d9a3b33d2c9f996537b7f1d0246dee2d0120cefb
http://www.openwall.com/lists/oss-security/2015/12/24/1Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/79670Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1283722Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Third Party Advisory

Timeline

Published: Apr 11, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8666?

Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.

How severe is CVE-2015-8666?

CVE-2015-8666 has a CVSS score of 7.9/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8666?

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-2015-8666?

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

Scan your code now

Source: NVD / NIST