CVE-2020-23793

Exp

An issue was discovered in spice-server spice-server-0.14.0-6.el7_6.1.x86_64 of Redhat's VDI product. There is a security vulnerablility that can restart KVMvirtual machine without any authorization. It is not yet known if there will be other other effects.

Published: 2023-08-22 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-23793 is rated High Exploit Risk (67.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.72%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-23793

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-23793

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.09% 0.72% +0.63%
2 2025-11-21 0.31% 0.09% -0.22%
3 2025-11-18 — 0.31% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-23793

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.6 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 4.0 [email protected]

Weakness enumeration for CVE-2020-23793

OS Trackers for CVE-2020-23793

vendor priority summary link
debian not yet assigned CVE-2020-23793 not yet assigned priority: Debian including 1 source packages (spice), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-23793
redhat medium — https://access.redhat.com/security/cve/CVE-2020-23793
suse high CVE-2020-23793 severity important: SUSE including 13 source package names (libspice-client-glib-2_0-8, libspice-client-glib-helper, …), 299 product×package rows across 40 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7, … (40 product lines)): Known Not Affected 299. https://www.suse.com/security/cve/CVE-2020-23793/
ubuntu medium CVE-2020-23793 medium priority: Ubuntu including 1 source packages (spice), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, needs-triage 4. https://ubuntu.com/security/CVE-2020-23793

Affected software / configurations for CVE-2020-23793

Vendor Product Version Raw CPE
spice-space spice-server 0.14.0-6el7_6.1 cpe:2.3:a:spice-space:spice-server:0.14.0-6el7_6.1:*:*:*:*:*:*:*

References for CVE-2020-23793

cvelogic Threat Intelligence