How severe is CVE-2021-40033?

CVE-2021-40033 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-40033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40033?

CVE-2021-40033 primarily affects Huawei Cloudengine 12800 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40033?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-40033 published?

CVE-2021-40033 was published on 2022-01-31 and last updated on 2026-06-17.

CVE-2021-40033

CVE-2021-40033 is a medium-severity vulnerability in Huawei Cloudengine 12800 Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Cloudengine 12800 Firmware
Published: 2022-01-31
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-40033?: CVE-2021-40033 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-40033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40033?: CVE-2021-40033 primarily affects Huawei Cloudengine 12800 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40033?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40033 published?: CVE-2021-40033 was published on 2022-01-31 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220112-01-infodis-en

Affected products (8)

cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c20spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r019c00spc800:*:*:*:*:*:*:*

More vulnerabilities in Huawei Cloudengine 12800 Firmware

CVE-2017-17301 — Critical (CVSS 9.8): Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR1200 V200R005C20, V200R005C32, V200R006C10,…
CVE-2016-6178 — Critical (CVSS 9.8): Huawei NE40E and CX600 devices with software before V800R007SPH017; PTN 6900-2-M8 devices with software before…
CVE-2020-9207 — High (CVSS 7.8): There is an improper authentication vulnerability in some verisons of Huawei CloudEngine product. A module does not…
CVE-2021-40008 — High (CVSS 7.5): There is a memory leak vulnerability in CloudEngine 12800 V200R019C00SPC800, CloudEngine 5800 V200R019C00SPC800,…
CVE-2021-22328 — High (CVSS 7.5): There is a denial of service vulnerability in some huawei products. In specific scenarios, due to the improper handling…
CVE-2021-22332 — High (CVSS 7.5): There is a pointer double free vulnerability in some versions of CloudEngine 5800, CloudEngine 6800, CloudEngine 7800…

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