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CVE-2020-23793

21
FAUCET Score

CVE-2020-23793 describes an unauthorized KVM virtual machine restart vulnerability in spice-server version 0.14.0-6.el7_6.1.x86_64, specifically impacting Red Hat's VDI product. This high-severity vulnerability (CVSS 8.6) allows unauthenticated remote attackers to cause a denial of service by restarting virtual machines. While the full extent of other potential effects is unknown, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.14.0-6el7_6.1CPE matchmatch criteria
cpe:2.3:a:spice-space:spice-server:0.14.0-6el7_6.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 26th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 Advisories (1)

redhatCVE-2020-23793Moderate

spice: Improper input validation in function async_READ_handler

Aug 22, 2023

References

github.com / zelat/spice-security-issues
Exploit