How severe is CVE-2019-5266?

CVE-2019-5266 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-2019-5266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5266?

CVE-2019-5266 affects Huawei P30 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5266?

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-2019-5266 published?

CVE-2019-5266 was published on 2019-12-23 and last updated on 2026-06-17.

CVE-2019-5266

CVE-2019-5266 is a high-severity vulnerability in Huawei P30 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Huawei P30 Firmware
Published: 2019-12-23
Last modified: 2026-06-17

Description

Huawei Share function in P30 9.1.0.193(C00E190R2P1) smartphone has an insufficient input validation vulnerability. Attackers can exploit this vulnerability by sending crafted packets to the affected device. Successful exploit may cause the function will be disabled.

Frequently asked questions

What is CVE-2019-5266?: Huawei Share function in P30 9.1.0.193(C00E190R2P1) smartphone has an insufficient input validation vulnerability. Attackers can exploit this vulnerability by sending crafted packets to the affected device. Successful exploit may cause the function will be disabled.
How severe is CVE-2019-5266?: CVE-2019-5266 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-2019-5266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5266?: CVE-2019-5266 affects Huawei P30 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5266?: 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-2019-5266 published?: CVE-2019-5266 was published on 2019-12-23 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191218-02-share-en

Affected products (1)

cpe:2.3:o:huawei:p30_firmware:9.1.0.193\(c00e190r2p1\):*:*:*:*:*:*:*

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