How severe is CVE-2019-5271?

CVE-2019-5271 has a CVSS 3.x base score of 5.4, 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 low, integrity low, and availability none.

Is CVE-2019-5271 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5271?

CVE-2019-5271 primarily affects Huawei Myna Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-5271?

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

When was CVE-2019-5271 published?

CVE-2019-5271 was published on 2019-11-29 and last updated on 2026-06-17.

CVE-2019-5271

CVE-2019-5271 is a medium-severity vulnerability in Huawei Myna Firmware with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 4.8
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Myna Firmware
Published: 2019-11-29
Last modified: 2026-06-17

Description

There is an information leak vulnerability in Huawei smart speaker Myna. When the smart speaker is paired with the cloud through Wi-Fi, the speaker incorrectly processes some data. Attackers can exploit this vulnerability to read and modify specific configurations of speakers through a series of operations.

Frequently asked questions

What is CVE-2019-5271?: There is an information leak vulnerability in Huawei smart speaker Myna. When the smart speaker is paired with the cloud through Wi-Fi, the speaker incorrectly processes some data. Attackers can exploit this vulnerability to read and modify specific configurations of speakers through a series of operations.
How severe is CVE-2019-5271?: CVE-2019-5271 has a CVSS 3.x base score of 5.4, 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 low, integrity low, and availability none.
Is CVE-2019-5271 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5271?: CVE-2019-5271 primarily affects Huawei Myna Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-5271?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-5271 published?: CVE-2019-5271 was published on 2019-11-29 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191127-01-myna-en

Affected products (6)

cpe:2.3:o:huawei:myna_firmware:9.0.1.9\(h100sp6c00\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:myna_firmware:9.0.1.10\(h100sp5c00\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:myna_firmware:9.0.1.10\(h100sp8c00\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:myna_firmware:9.0.1.10\(h100sp10c00\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:myna_firmware:9.0.1.10\(h100sp11c00\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:myna_firmware:9.0.1.10\(h100sp12c00\):*:*:*:*:*:*:*

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