CVE-2021-22393

mediumpriority · track · 30EPSS 0.007 · 52 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.68% (52nd) EPSS

CVSS 5 · medium

Is it mine?

17 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

There is a denial of service vulnerability in some versions of CloudEngine 5800, CloudEngine 6800, CloudEngine 7800 and CloudEngine 12800. The affected product cannot deal with some messages because of module design weakness . Attackers can exploit this vulnerability by sending a large amount of specific messages to cause denial of service. This can compromise normal service.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USLLM-inferredCWE-444USLLM-inferred

affected products (17)

Products and version ranges known to be affected.

n/a CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800≤ V200R002C50SPC800,V200R003C00SPC810,V200R005C00SPC800,V200R005C10SPC800enisa_euvdEU
huawei cloudengine 12800 firmware= v200r002c50spc800nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 12800 firmware= v200r003c00spc810nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 12800 firmware= v200r005c00spc800nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 12800 firmware= v200r005c10spc800nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 5800= v200r002c50spc800nvdUScpe:2.3:o:huawei:cloudengine_5800:*:*:*:*:*:*:*:*
huawei cloudengine 5800= v200r003c00spc810nvdUScpe:2.3:o:huawei:cloudengine_5800:*:*:*:*:*:*:*:*
huawei cloudengine 5800= v200r005c00spc800nvdUScpe:2.3:o:huawei:cloudengine_5800:*:*:*:*:*:*:*:*
huawei cloudengine 5800= v200r005c10spc800nvdUScpe:2.3:o:huawei:cloudengine_5800:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r002c50spc800nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r003c00spc810nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r005c00spc800nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r005c10spc800nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 7800 firmware= v200r002c50spc800nvdUScpe:2.3:o:huawei:cloudengine_7800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 7800 firmware= v200r003c00spc810nvdUScpe:2.3:o:huawei:cloudengine_7800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 7800 firmware= v200r005c00spc800nvdUScpe:2.3:o:huawei:cloudengine_7800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 7800 firmware= v200r005c10spc800nvdUScpe:2.3:o:huawei:cloudengine_7800_firmware:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-04-28modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

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