What’s Vulnerable › Vulnerabilities

CVE-2021-22393

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-28 · updated 2026-06-17

Description

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.

Affected products

• CloudEngine 12800: v200r002c50spc800, v200r003c00spc810, v200r005c00spc800, v200r005c10spc800
• Huawei CloudEngine 5800: v200r002c50spc800, v200r003c00spc810, v200r005c00spc800, v200r005c10spc800
• Huawei Cloudengine 6800 Firmware: v200r002c50spc800, v200r003c00spc810, v200r005c00spc800, v200r005c10spc800
• Huawei Cloudengine 7800 Firmware: v200r002c50spc800, v200r003c00spc810, v200r005c00spc800, v200r005c10spc800

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210324-01-dos-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210324-01-dos-en

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