CVE-2016-6835

Name: CVE-2016-6835
Creator: NVD / NIST
Published: 2016-12-10T00:59:06.73+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2016-6835 is a medium-severity vulnerability rated 6/10 on the CVSS scale. The vmxnet_tx_pkt_parse_headers function in hw/net/vmxnet_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (buffer over-read) by leveraging failure to check IP header length.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The vmxnet_tx_pkt_parse_headers function in hw/net/vmxnet_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (buffer over-read) by leveraging failure to check IP header length.

Metrics

CVSS 3.1

6/10

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

EPSS Probability

0.39%

31.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Qemu	Qemu	< 2.6.0
Redhat	Virtualization	4.0
Debian	Debian Linux	8.0

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=93060258ae748573ca7197204125a2670047896d
http://www.openwall.com/lists/oss-security/2016/08/11/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/18/4Mailing List, Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.htmlPatch, Vendor Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=93060258ae748573ca7197204125a2670047896d
http://www.openwall.com/lists/oss-security/2016/08/11/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/18/4Mailing List, Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.htmlPatch, Vendor Advisory

Timeline

Published: Dec 10, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6835?

How severe is CVE-2016-6835?

CVE-2016-6835 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6835?

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-2016-6835?

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

Scan your code now

Source: NVD / NIST