What is CVE-2025-28256?

CVE-2025-28256 is a critical-severity vulnerability in Totolink A3100r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-03-28.

How severe is CVE-2025-28256?

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

RCE in Totolink A3100r

CVE-2025-28256

An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute arbitrary code via the setWebWlanIdx of the file /lib/cste_modules/wireless.so.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.009 (54.8th 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

Totolink A3100r
Totolink A3100r_firmware — versions 4.1.2cu.5247_b20211129
N/a — versions n/a

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-28256?: CVE-2025-28256 is a critical-severity vulnerability in Totolink A3100r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-03-28.
How severe is CVE-2025-28256?: Critical severity. CVSS v3 base score is 9.8 out of 10.