What is CVE-2025-45800?

CVE-2025-45800 is a critical-severity vulnerability in Totolink A950rg, classified under Command Injection. CVSS score: 9.8/10. Published 2025-05-02.

How severe is CVE-2025-45800?

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

RCE in Totolink A950rg

CVE-2025-45800

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the /lib/cste_modules/global.so library, specifically in the processing of the deviceMac parameter.

Vulnerability class: Command Injection (OS Command Injection)

Published 2025-05-02 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.009 (59.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.001

Affected products

Totolink A950rg
Totolink A950rg Firmware — versions 4.1.2cu.5204_b20210112

Weakness classification (CWE)

CWE-77 — Command Injection

References

github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/50… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-45800?: CVE-2025-45800 is a critical-severity vulnerability in Totolink A950rg, classified under Command Injection. CVSS score: 9.8/10. Published 2025-05-02.
How severe is CVE-2025-45800?: Critical severity. CVSS v3 base score is 9.8 out of 10.