CVE-2020-14124 Memory corruption in Xiaomi Router AX3600

What is CVE-2020-14124?

CVE-2020-14124 is a critical memory corruption vulnerability in Xiaomi Router AX3600, published on 16 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a buffer overflow in librsa.so called by getwifipwdurl interface, resulting in code execution on Xiaomi router AX3600 with ROM version =rom< 1.1.12.

Weakness: CWE-120

Which versions are affected by CVE-2020-14124?

It affects 1 product.

Products include Mi Ax3600 Firmware.

How do I fix CVE-2020-14124?

No fix has been published for CVE-2020-14124 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-14124 being exploited?

There is no known exploitation of CVE-2020-14124 in the wild and no public exploit code.

Other vulnerabilities in Xiaomi Router AX3600

• CVE-2020-14115 Command injection in Xiaomi Router AX3600 Critical 9.8
• CVE-2020-14104 Race condition in Xiaomi router AX3600 High 8.1
• CVE-2020-14111 Command injection in Xiaomi Router Router AX3600 High 7.8
• CVE-2020-14110 Missing authorization in miwifi6 AX3600 High 7.8
• CVE-2020-14109 Command injection in Xiaomi Router AX3600 High 7.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3367-6xxj-j9cg.