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CVE-2023-31021

17
FAUCET Score

CVE-2023-31021 is a NULL-pointer dereference vulnerability in the NVIDIA vGPU software's Virtual GPU Manager, affecting various virtualization platforms including Canonical, Citrix, Microsoft, Red Hat, and VMware. A malicious user within a guest VM can exploit this to cause a denial of service. Rated Medium severity (CVSS 5.5), it requires local access and low attack complexity, with the primary impact being system unavailability. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 13.9CPE matchmatch criteria
cpe:2.3:a:nvidia:virtual_gpu:*:*:*:*:*:*:*:*
>= 14.0, < 15.4CPE matchmatch criteria
cpe:2.3:a:nvidia:virtual_gpu:*:*:*:*:*:*:*:*
>= 16.0, < 16.2CPE matchmatch criteria
cpe:2.3:a:nvidia:virtual_gpu:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 38th percentile among its peer group of 15,940 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

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

Remediation

Remediation records are not available for this CVE.

References

nvidia.custhelp.com / app/answers/detail/a_id/5491
Vendor Advisory