CVE-2021-40033

There is an information exposure vulnerability on several Huawei Products. The vulnerability is due to that the software does not properly protect certain information. Successful exploit could cause information disclosure. Affected product versions include: CloudEngine 12800 V200R005C10SPC800; CloudEngine 5800 V200R005C10SPC800, V200R019C00SPC800; CloudEngine 6800 V200R005C10SPC800, V200R005C20SPC800, V200R019C00SPC800; CloudEngine 7800 V200R005C10SPC800, V200R019C00SPC800.

Published: 2022-01-31 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-40033 is rated Low Risk (23.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2021-40033

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 2025-03-30 0.05% 0.03% -0.03%
2 2025-03-29 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-40033

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L)
A normal user session is enough; they don’t have to be admin.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2021-40033

Affected software / configurations for CVE-2021-40033

Vendor Product Version Raw CPE
huawei cloudengine_12800_firmware v200r005c10spc800 cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
huawei cloudengine_5800_firmware v200r005c10spc800 cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
huawei cloudengine_5800_firmware v200r019c00spc800 cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
huawei cloudengine_6800_firmware v200r005c10spc800 cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
huawei cloudengine_6800_firmware v200r005c20spc800 cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c20spc800:*:*:*:*:*:*:*
huawei cloudengine_6800_firmware v200r019c00spc800 cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
huawei cloudengine_7800_firmware v200r005c10spc800 cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
huawei cloudengine_7800_firmware v200r019c00spc800 cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r019c00spc800:*:*:*:*:*:*:*

References for CVE-2021-40033

cvelogic Threat Intelligence