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CVE-2017-5931

27
FAUCET Score

CVE-2017-5931 describes an integer overflow in QEMU's virtio-crypto component, allowing local guest OS privileged users to trigger a heap-based buffer overflow. This vulnerability affects QEMU and carries a high CVSS score of 8.8, indicating a significant risk of denial of service or arbitrary code execution on the host system. While the attack complexity is low, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 81st percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia msrc
Product: 16843-16820Fixed in: 4.2.0-13
microsoftpatch availablevia msrc
Product: cm1 qemu-kvm 4.2.0-13 on CBL Mariner 1.0Fixed in: 4.2.0-13
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 4.2.0-13
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 4.2.0-13
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (3)

microsoft2020-Sep/CVE-2017-5931

CVE-2017-5931

Sep 8, 2020
microsoft2017-Mar/CVE-2017-5931Important

Integer overflow in hw/virtio/virtio-crypto.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code on the host via a crafted virtio-crypto request which triggers a heap-based buffer overflow.

Mar 14, 2017
redhatCVE-2017-5931Moderate

Qemu: virtio: integer overflow in handling virtio-crypto requests

Jan 10, 2017

References

git.qemu-project.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.nongnu.org / archive/html/qemu-devel/2017-01/msg01368.html
PatchVendor Advisory
security.gentoo.org / glsa/201702-28
Third Party Advisory
openwall.com / lists/oss-security/2017/02/08/2
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/96141
Third Party AdvisoryVDB Entry