What is CVE-2020-14124?

CVE-2020-14124 is a critical-severity vulnerability in Mi Ax3600, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-09-16.

How severe is CVE-2020-14124?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-14124 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Mi Ax3600

CVE-2020-14124

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.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (78.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mi Ax3600
Mi Ax3600_firmware
N/a Xiaomi Router Ax3600 — versions Xiaomi Router AX3600 rom rom< 1.1.12

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

p1ay8y3ar/cve_

References

security@xiaomi.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-14124?: CVE-2020-14124 is a critical-severity vulnerability in Mi Ax3600, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-09-16.
How severe is CVE-2020-14124?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-14124 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.