How severe is CVE-2020-9122?

CVE-2020-9122 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9122?

CVE-2020-9122 primarily affects Huawei Hirouter-cd30-10 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9122?

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

When was CVE-2020-9122 published?

CVE-2020-9122 was published on 2020-10-12 and last updated on 2026-06-17.

CVE-2020-9122

CVE-2020-9122 is a medium-severity vulnerability in Huawei Hirouter-cd30-10 Firmware with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei Hirouter-cd30-10 Firmware
Published: 2020-10-12
Last modified: 2026-06-17

Description

Some Huawei products have an insufficient input verification vulnerability. Attackers can exploit this vulnerability in the LAN to cause service abnormal on affected devices.Affected product versions include:HiRouter-CD30-10 version 10.0.2.5;HiRouter-CT31-10 version 10.0.2.20;WS5200-12 version 10.0.1.9;WS5281-10 version 10.0.5.10;WS5800-10 version 10.0.3.25;WS7100-10 version 10.0.5.21;WS7200-10 version 10.0.5.21.

Frequently asked questions

What is CVE-2020-9122?: Some Huawei products have an insufficient input verification vulnerability. Attackers can exploit this vulnerability in the LAN to cause service abnormal on affected devices.Affected product versions include:HiRouter-CD30-10 version 10.0.2.5;HiRouter-CT31-10 version 10.0.2.20;WS5200-12 version 10.0.1.9;WS5281-10 version 10.0.5.10;WS5800-10 version 10.0.3.25;WS7100-10 version 10.0.5.21;WS7200-10 version 10.0.5.21.
How severe is CVE-2020-9122?: CVE-2020-9122 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9122?: CVE-2020-9122 primarily affects Huawei Hirouter-cd30-10 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9122?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9122 published?: CVE-2020-9122 was published on 2020-10-12 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200930-01-verification-en

Affected products (7)

cpe:2.3:o:huawei:hirouter-cd30-10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:hirouter-ct31-10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ws5200-12_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ws5281-10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ws5800-10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ws7100-10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:huawei:ws7200-10_firmware:*:*:*:*:*:*:*:*

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