How severe is CVE-2020-9124?

CVE-2020-9124 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9124 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9124?

CVE-2020-9124 primarily affects Huawei Cloudengine 12800 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9124?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-9124 published?

CVE-2020-9124 was published on 2020-12-29 and last updated on 2026-06-17.

CVE-2020-9124

CVE-2020-9124 is a high-severity vulnerability in Huawei Cloudengine 12800 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Huawei Cloudengine 12800 Firmware
Published: 2020-12-29
Last modified: 2026-06-17

Description

There is a memory leak vulnerability in some versions of Huawei CloudEngine product. An unauthenticated, remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause memory leak.

Frequently asked questions

What is CVE-2020-9124?: There is a memory leak vulnerability in some versions of Huawei CloudEngine product. An unauthenticated, remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause memory leak.
How severe is CVE-2020-9124?: CVE-2020-9124 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9124 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9124?: CVE-2020-9124 primarily affects Huawei Cloudengine 12800 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9124?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-9124 published?: CVE-2020-9124 was published on 2020-12-29 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20201223-01-cloudengine-en

Affected products (16)

cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r002c50spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r003c00spc810:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r002c50spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r003c00spc810:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r002c50spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r003c00spc810:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r002c50spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r003c00spc810:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c00spc800:*:*:*:*:*:*:*
cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c10spc800:*:*:*:*:*:*:*

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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