CVE-2020-14120: Some Xiaomi models have a vulnerability in a certain application

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HIGH 8.8MITIGATE

CVE-2020-14120 is a high-severity flaw (CVSS 8.8) affecting miui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Some Xiaomi models have a vulnerability in a certain application. The vulnerability is caused by the lack of checksum when using a three-party application to pass in parameters, and attackers can induce users to install a malicious app and use the vulnerability to achieve elevated privileges, making the normal services of the system affected.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-354
Published	2022-04-21
Last modified	2026-06-17

Publisher (CNA): Xiaomi Technology Co., Ltd. · Vendor: mi

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-04-21 18:15 UTCPublished CVE record published
2026-06-17 02:54 UTCUpdated Record last modified

mi miui MITIGATE

Affected: 12.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.5

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-14120?

miui: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-14120 being exploited?

CVE-2020-14120 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-14120 affect?

CVE-2020-14120 affects miui. Severity is high (CVSS 8.8). Some Xiaomi models have a vulnerability in a certain application. The vulnerability is caused by the lack of checksum when using a three-party application to pass in parameters, and attackers can induce users to install a malicious app and

How urgent is CVE-2020-14120?

Priority 40/100. High severity

Software pages

Xiaomi vulnerabilities

Related CVEs

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CVE-2020-14122 MEDIUM 5.5 MITIGATE Some Xiaomi phones have information leakage vulnerabilities, and some of them may be able to forge a specific
CVE-2020-14106 MEDIUM 5.5 UPGRADE The application in the mobile phone can unauthorized access to the list of running processes in the mobile pho

References

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