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CVE-2016-4454

21
FAUCET Score

CVE-2016-4454 describes an out-of-bounds read vulnerability in the vmsvga_fifo_read_raw function within QEMU's VMware VGA driver, affecting various QEMU and Linux distributions. This flaw allows a local guest OS administrator to trigger a QEMU process crash (Denial of Service) or potentially extract sensitive host memory information. With a CVSS score of 6.0 (Medium), it requires high privileges (PR:H) on the guest OS but has low attack complexity (AC:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 85th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm-rhev
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2016-4454Moderate

Qemu: display: vmsvga: out-of-bounds read in vmsvga_fifo_read_raw() routine

May 30, 2016

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00038.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2016-05/msg05271.html
Mailing ListPatchVendor Advisory
security.gentoo.org / glsa/201609-01
Third Party Advisory
openwall.com / lists/oss-security/2016/05/30/3
Mailing ListThird Party Advisory
securityfocus.com / bid/90927
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3047-1
Third Party Advisory
ubuntu.com / usn/USN-3047-2
Third Party Advisory