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01 Record

CVE-2021-22320

There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. Attackers can exploit this vulnerability by sending malicious messages to an

UnratedPUBLISHEDCNA: huawei
CNA base scoreUnratedNo CNA CVSS vector

02 Description

There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. Attackers can exploit this vulnerability by sending malicious messages to an

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.75% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 54.8% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-22 18:41Z5 YR AGO
Last updated
2024-08-03 18:37Z2 YR AGO
Reserved
2021-01-05
Assigning CNA
huawei
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
1fc52868311ddd6a42ffe32725fd669f41b489cefa3b8b8df927d5f88481857e

05 Affected products

VendorProductVersionsPlatforms
n/aIPS Module;NGFW Module;NIP6600;NIP6800;Secospace USG6300;Secospace USG6500;Secospace USG6600V500R005C00SPC100,V500R005C00SPC200,V500R005C20SPC300, V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500,V500R005C00SPC100,V500R005C00SPC200,V500R005C20SPC300,V500R005C20SPC500, V500R001C60SPC500,V500R005C00SPC100,V500R005C00SPC200,V500R005C20SPC300,V500R005C20SPC500—

06 References