How severe is CVE-2020-23793?

CVE-2020-23793 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-23793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-23793?

CVE-2020-23793 affects Spice-space Spice-server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-23793?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-23793 published?

CVE-2020-23793 was published on 2023-08-22 and last updated on 2026-06-17.

CVE-2020-23793

CVE-2020-23793 is a high-severity vulnerability in Spice-space Spice-server with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Spice-space Spice-server
Published: 2023-08-22
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-23793?: 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.
How severe is CVE-2020-23793?: CVE-2020-23793 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-23793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-23793?: CVE-2020-23793 affects Spice-space Spice-server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-23793?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-23793 published?: CVE-2020-23793 was published on 2023-08-22 and last updated on 2026-06-17.

References

https://github.com/zelat/spice-security-issues

Affected products (1)

cpe:2.3:a:spice-space:spice-server:0.14.0-6el7_6.1:*:*:*:*:*:*:*

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