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CVE-2017-2633

24
FAUCET Score

CVE-2017-2633 describes an out-of-bounds memory access vulnerability in the VNC display driver of Quick Emulator (QEMU) versions prior to 1.7.2, affecting QEMU and Red Hat products. This flaw, rated Medium severity (CVSS 6.5), allows a malicious guest user to crash the QEMU process, leading to a denial of service. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the vulnerability remains a potential risk for unpatched systems.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.7.2CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.04%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0304 is in the 95th percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm-2:0.12.1.2-2.503.el6_9.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-10:1.5.3-141.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed in: qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm-rhev
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2017-2633Moderate

Qemu: VNC: memory corruption due to unchecked resolution limit

Dec 1, 2016

References

access.redhat.com / errata/RHSA-2017:1205
Third Party Advisory
access.redhat.com / errata/RHSA-2017:1206
Third Party Advisory
access.redhat.com / errata/RHSA-2017:1441
Third Party Advisory
access.redhat.com / errata/RHSA-2017:1856
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
git.qemu.org
git.qemu.org
openwall.com / lists/oss-security/2017/02/23/1
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/96417
Third Party AdvisoryVDB Entry