How severe is CVE-2020-14123?

CVE-2020-14123 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-2020-14123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14123?

CVE-2020-14123 affects Mi Miui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14123?

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-2020-14123 published?

CVE-2020-14123 was published on 2022-04-22 and last updated on 2026-06-17.

CVE-2020-14123

CVE-2020-14123 is a high-severity vulnerability in Mi Miui 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-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Mi Miui
Published: 2022-04-22
Last modified: 2026-06-17

Description

There is a pointer double free vulnerability in Some MIUI Services. When a function is called, the memory pointer is copied to two function modules, and an attacker can cause the pointer to be repeatedly released through malicious operations, resulting in the affected module crashing and affecting normal functionality, and if successfully exploited the vulnerability can cause elevation of privileges.

Frequently asked questions

What is CVE-2020-14123?: There is a pointer double free vulnerability in Some MIUI Services. When a function is called, the memory pointer is copied to two function modules, and an attacker can cause the pointer to be repeatedly released through malicious operations, resulting in the affected module crashing and affecting normal functionality, and if successfully exploited the vulnerability can cause elevation of privileges.
How severe is CVE-2020-14123?: CVE-2020-14123 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-2020-14123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14123?: CVE-2020-14123 affects Mi Miui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14123?: 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-2020-14123 published?: CVE-2020-14123 was published on 2022-04-22 and last updated on 2026-06-17.

References

https://trust.mi.com/zh-CN/misrc/bulletins/advisory?cveId=134

Affected products (1)

cpe:2.3:o:mi:miui:12.5.2:*:*:*:*:*:*:*

More vulnerabilities in Mi Miui

CVE-2020-14120 — High (CVSS 8.8): Some Xiaomi models have a vulnerability in a certain application. The vulnerability is caused by the lack of checksum…
CVE-2020-14127 — High (CVSS 7.5): A denial of service vulnerability exists in some Xiaomi models of phones. The vulnerability is caused by heap overflow…
CVE-2020-14125 — High (CVSS 7.5): A denial of service vulnerability exists in some Xiaomi models of phones. The vulnerability is caused by out-of-bound…
CVE-2020-14122 — Medium (CVSS 5.5): Some Xiaomi phones have information leakage vulnerabilities, and some of them may be able to forge a specific identity…
CVE-2020-14105 — Medium (CVSS 5.5): The application in the mobile phone can read the SNO information of the device, Xiaomi 10 MIUI < 2020.01.15.
CVE-2020-14106 — Medium (CVSS 5.5): The application in the mobile phone can unauthorized access to the list of running processes in the mobile phone,…

All CVEs affecting Mi Miui →

Other CWE-415 (Double Free) vulnerabilities

CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2026-89078 — Critical (CVSS 9.9): GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and…
CVE-2026-84561 — Critical (CVSS 9.8): A double free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS…
CVE-2026-77493 — Critical (CVSS 9.8): Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
CVE-2026-64387 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay…
CVE-2026-64386 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay…

Browse all CWE-415 (Double Free) vulnerabilities →