CVE-2020-1820

mediumpriority · track · 21EPSS 0.003 · 17 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (17th) EPSS

CVSS 5.3 · medium

Is it mine?

46 products

Check your exposure

Who says so?

2 sources

cnnvd · enisa_euvd

EPSS · scored 2026-10-28

There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some Huawei products. The specific decoding function may occur out-of-bounds read when processes an incoming data packet. Successful exploit of these vulnerabilities may disrupt service on the affected device. (Vulnerability ID: HWPSIRT-2018-12275,HWPSIRT-2018-12276,HWPSIRT-2018-12277,HWPSIRT-2018-12278,HWPSIRT-2018-12279,HWPSIRT-2018-12280 and HWPSIRT-2018-12289) The seven vulnerabilities have been assigned seven Common Vulnerabilities and Exposures (CVE) IDs: CVE-2020-1818, CVE-2020-1819, CVE-2020-1820, CVE-2020-1821, CVE-2020-1822, CVE-2020-1823 and CVE-2020-1824.

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–5.3

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · psirt@huawei.comexploitability 2.2 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimary

affected products (46)

Products and version ranges known to be affected.

Huawei IPS Module≤ V500R001C60enisa_euvdEU
Huawei IPS Module≤ V500R001C30enisa_euvdEU
Huawei IPS Module≤ V500R005C00enisa_euvdEU
Huawei NGFW Module≤ V500R005C00enisa_euvdEU
Huawei NGFW Module≤ V500R002C20enisa_euvdEU
Huawei NGFW Module≤ V500R002C00enisa_euvdEU
Huawei NIP6300≤ V500R005C00enisa_euvdEU
Huawei NIP6300≤ V500R001C60enisa_euvdEU
Huawei NIP6300≤ V500R001C30enisa_euvdEU
Huawei NIP6600≤ V500R001C60enisa_euvdEU
Huawei NIP6600≤ V500R005C00enisa_euvdEU
Huawei NIP6600≤ V500R001C30enisa_euvdEU
Huawei NIP6800≤ V500R005C00enisa_euvdEU
Huawei NIP6800≤ V500R001C60enisa_euvdEU
Huawei Secospace USG6300≤ V500R001C30enisa_euvdEU
Huawei Secospace USG6300≤ V500R001C60enisa_euvdEU
Huawei Secospace USG6300≤ V500R005C00enisa_euvdEU
Huawei Secospace USG6500≤ V500R005C00enisa_euvdEU
Huawei Secospace USG6500≤ V500R001C60enisa_euvdEU
Huawei Secospace USG6500≤ V500R001C30enisa_euvdEU

showing 20 of 46

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd NVD CVE.org MITRE

published 2024-12-28modified 2026-06-17

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+11877 more

references (4)

External citations — patches, advisories, analysis.

scry

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