How severe is CVE-2020-1831?

CVE-2020-1831 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-1831 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1831?

CVE-2020-1831 affects Huawei Mate 20 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1831?

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

When was CVE-2020-1831 published?

CVE-2020-1831 was published on 2020-05-29 and last updated on 2026-06-17.

CVE-2020-1831

CVE-2020-1831 is a low-severity vulnerability in Huawei Mate 20 Firmware with a CVSS 3.x base score of 2.4. 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-863.

Key facts

Severity: Low (CVSS 3.x base score 2.4)
CVSS v2: 1.9
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Huawei Mate 20 Firmware
Published: 2020-05-29
Last modified: 2026-06-17

Description

HUAWEI Mate 20 smartphones with versions earlier than 10.0.0.195(SP31C00E74R3P8) have an improper authorization vulnerability. The digital balance function does not sufficiently restrict the using time of certain user, successful exploit could allow the user break the limit of digital balance function after a series of operations with a PC.

Frequently asked questions

What is CVE-2020-1831?: HUAWEI Mate 20 smartphones with versions earlier than 10.0.0.195(SP31C00E74R3P8) have an improper authorization vulnerability. The digital balance function does not sufficiently restrict the using time of certain user, successful exploit could allow the user break the limit of digital balance function after a series of operations with a PC.
How severe is CVE-2020-1831?: CVE-2020-1831 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-1831 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1831?: CVE-2020-1831 affects Huawei Mate 20 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1831?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1831 published?: CVE-2020-1831 was published on 2020-05-29 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200527-04-smartphone-en

Affected products (1)

cpe:2.3:o:huawei:mate_20_firmware:*:*:*:*:*:*:*:*

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