CVE-2021-40042

mediumpriority · track · 26EPSS 0.006 · 47 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (47th) EPSS

CVSS 4 · medium

Is it mine?

17 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

There is a release of invalid pointer vulnerability in some Huawei products, successful exploit may cause the process and service abnormal. Affected product versions include: CloudEngine 12800 V200R019C10SPC800, V200R019C10SPC900; CloudEngine 5800 V200R019C10SPC800, V200R020C00SPC600; CloudEngine 6800 versions V200R019C10SPC800, V200R019C10SPC900, V200R020C00SPC600, V300R020C00SPC200; CloudEngine 7800 V200R019C10SPC800.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-763USprimaryCWE-763US

affected products (17)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Huawei Technologies Co., Ltd. CloudEngine 12800≤ V200R019SPH007fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 5800≤ V200R019SPH007fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 5800≤ V200R020SPH003fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 6800≤ V300R020SPH003fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 6800≤ V200R020SPH003fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 6800≤ V200R019SPH007fstec_bduRU
Huawei Technologies Co., Ltd. CloudEngine 7800≤ V200R019SPH007fstec_bduRU
huawei cloudengine 12800 firmware= v200r019c10spc800nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 12800 firmware= v200r019c10spc900nvdUScpe:2.3:o:huawei:cloudengine_12800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 5800 firmware= v200r019c10spc800nvdUScpe:2.3:o:huawei:cloudengine_5800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 5800 firmware= v200r020c00spc600nvdUScpe:2.3:o:huawei:cloudengine_5800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r019c10spc800nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r019c10spc900nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v200r020c00spc600nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 6800 firmware= v300r020c00spc200nvdUScpe:2.3:o:huawei:cloudengine_6800_firmware:*:*:*:*:*:*:*:*
huawei cloudengine 7800 firmware= v200r019c10spc800nvdUScpe:2.3:o:huawei:cloudengine_7800_firmware:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2022-01-31modified 2026-06-17

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+166 more

references (6)

External citations — patches, advisories, analysis.

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