How severe is CVE-2020-9123?

CVE-2020-9123 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-9123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9123?

CVE-2020-9123 affects Huawei P30 Pro Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9123?

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-2020-9123 published?

CVE-2020-9123 was published on 2020-10-12 and last updated on 2026-06-17.

CVE-2020-9123

CVE-2020-9123 is a high-severity vulnerability in Huawei P30 Pro Firmware with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Huawei P30 Pro Firmware
Published: 2020-10-12
Last modified: 2026-06-17

Description

HUAWEI P30 Pro versions earlier than 10.1.0.160(C00E160R2P8) and versions earlier than 10.1.0.160(C01E160R2P8) have a buffer overflow vulnerability. An attacker induces users to install malicious applications and sends specially constructed packets to affected devices after obtaining the root permission. Successful exploit may cause code execution.

Frequently asked questions

What is CVE-2020-9123?: HUAWEI P30 Pro versions earlier than 10.1.0.160(C00E160R2P8) and versions earlier than 10.1.0.160(C01E160R2P8) have a buffer overflow vulnerability. An attacker induces users to install malicious applications and sends specially constructed packets to affected devices after obtaining the root permission. Successful exploit may cause code execution.
How severe is CVE-2020-9123?: CVE-2020-9123 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-9123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9123?: CVE-2020-9123 affects Huawei P30 Pro Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9123?: 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-2020-9123 published?: CVE-2020-9123 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-buffer-en

Affected products (1)

cpe:2.3:o:huawei:p30_pro_firmware:*:*:*:*:*:*:*:*

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