What’s Vulnerable › Vulnerabilities

CVE-2020-1787

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-09 · updated 2026-06-17
• Weakness: CWE-287

Description

HUAWEI Mate 20 smartphones versions earlier than 9.1.0.139(C00E133R3P1) have an improper authentication vulnerability. The system has a logic error under certain scenario, successful exploit could allow the attacker who gains the privilege of guest user to access to the host user's desktop in an instant, without unlocking the screen lock of the host user.

Affected products

• HUAWEI Mate 20: before 9.1.0.139\(c00e133r3p1\) — fixed in 9.1.0.139\(c00e133r3p1\)

How to fix

Upgrade to a fixed version: HUAWEI Mate 20 9.1.0.139\(c00e133r3p1\). Check the vendor advisory for mitigations.

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200108-02-smartphone-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200108-02-smartphone-en

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