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CVE-2021-22328

24
FAUCET Score

CVE-2021-22328 describes a denial-of-service vulnerability in specific Huawei CloudEngine products, including the 12800, 5800, 6800, and 7800 series running V200R005C00SPC800 firmware. An unauthenticated attacker can exploit this by crafting specific packets, leading to abnormal service operation. This vulnerability has a CVSS v3.1 score of 7.5 (HIGH), indicating a network-based attack with low complexity, requiring no privileges or user interaction, and resulting in high availability impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
v200r005c00spc800CPE matchmatch criteria
cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
v200r005c00spc800CPE matchmatch criteria
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
v200r005c00spc800CPE matchmatch criteria
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
v200r005c00spc800CPE matchmatch criteria
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c00spc800:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 25th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

huawei.com / en/psirt/security-advisories/huawei-sa-20210407-01-dos-en
Vendor Advisory