CVE-2017-12809

Name: CVE-2017-12809
Creator: NVD / NIST
Published: 2017-08-23T16:29:00.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2017-12809 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.39%

30.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	<= 2.9.1	—
Qemu	Qemu	2.10.0	Rc0
Debian	Debian Linux	9.0	—

References

http://www.debian.org/security/2017/dsa-3991Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/21/2Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100451Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.htmlPatch, Third Party Advisory
http://www.debian.org/security/2017/dsa-3991Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/21/2Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100451Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.htmlPatch, Third Party Advisory

Timeline

Published: Aug 23, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12809?

How severe is CVE-2017-12809?

CVE-2017-12809 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12809?

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-2017-12809?

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

Scan your code now

Source: NVD / NIST