CVE-2021-22328

There is a denial of service vulnerability in some huawei products. In specific scenarios, due to the improper handling of the packets, an attacker may craft the specific packet. Successful exploit may cause some services abnormal. Affected product versions include:CloudEngine 12800 V200R005C00SPC800, CloudEngine 5800 V200R005C00SPC800, CloudEngine 6800 V200R005C00SPC800, CloudEngine 7800 V200R005C00SPC800.

Published: 2021-08-23 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-22328 is rated Moderate Risk (43.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.18%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-22328

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.09% 0.18% +0.10%
2 2023-03-07 0.89% 0.09% -0.80%
3 2022-04-01 — 0.89% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22328

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-22328

Affected software / configurations for CVE-2021-22328

Vendor Product Version Raw CPE
huawei cloudengine_12800_firmware v200r005c00spc800 cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
huawei cloudengine_5800_firmware v200r005c00spc800 cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
huawei cloudengine_6800_firmware v200r005c00spc800 cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
huawei cloudengine_7800_firmware v200r005c00spc800 cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c00spc800:*:*:*:*:*:*:*

References for CVE-2021-22328

cvelogic Threat Intelligence