What is CVE-2021-26621?

CVE-2021-26621 is a high-severity vulnerability in Netu Mex01, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.1/10. Published 2022-03-25.

How severe is CVE-2021-26621?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in Netu Mex01

CVE-2021-26621

An Buffer Overflow vulnerability leading to remote code execution was discovered in MEX01. Remote attackers can use this vulnerability by using the property that the target program copies parameter values to memory through the strcpy() function.

Vulnerability class: Buffer Overflow

EPSS: 0.017 (74.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

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

References

vuln@krcert.or.kr (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-26621?: CVE-2021-26621 is a high-severity vulnerability in Netu Mex01, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.1/10. Published 2022-03-25.
How severe is CVE-2021-26621?: High severity. CVSS v3 base score is 8.1 out of 10.