CVE-2021-20201 Affecting spice package, versions <0.14.3-2.1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.7% (85th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SPICE-21185082
  • published18 Oct 2026
  • disclosed28 May 2021

Introduced: 28 May 2021

CVE-2021-20201  (opens in a new tab)

How to fix?

Upgrade Echo:latest spice to version 0.14.3-2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spice package and not the spice package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.

CVSS Base Scores

version 3.1