CVE-2020-1807

App Lock bypass via unrestricted configuration modification

Published Apr 27, 2020 · Updated Aug 4, 2024

Improper authorization in Huawei Mate 20 before 10.0.0.188(C00E74R3P8) allows physically proximate attackers to bypass App Lock. In ADB mode, the firmware fails to restrict modification of a configuration file that governs App Lock access. Exploitation requires the ability to execute ADB commands on the device and can expose content protected by App Lock.

CVSS severity3.5
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authorization in Huawei Mate 20 before 10.0.0.188(C00E74R3P8) allows physically proximate attackers to bypass App Lock. In ADB mode, the firmware fails to restrict modification of a configuration file that governs App Lock access. Exploitation requires the ability to execute ADB commands on the device and can expose content protected by App Lock.

The record

CVE
CVE-2020-1807
Published
Apr 27, 2020
Updated
Aug 4, 2024
Vendor
MindSpore
Product
Huawei Mate 20
Classifications
Unavailable
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Versions earlier than 10.0.0.188(C00E74R3P8)

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

MindSpore · Huawei Mate 20version=Versions earlier than 10.0.0.188(C00E74R3P8)

Published CVSS scores

3.5NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.3Huawei PSIRTCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C
3.5Huawei PSIRTCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo