What is CVE-2025-45858?

CVE-2025-45858 is a critical-severity vulnerability in Totolink A3002r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-05-13.

How severe is CVE-2025-45858?

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

RCE in Totolink A3002r

CVE-2025-45858

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability via the FUN_00459fdc function.

Vulnerability class: Command Injection (OS Command Injection)

Published 2025-05-13 · 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: 0.107 (95.7th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.107 · newest: 0.107 · change: 0.000

Affected products

Totolink A3002r
Totolink A3002r Firmware — versions 4.0.0-b20230531.1404

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html (Product)
github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/injection1.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-45858?: CVE-2025-45858 is a critical-severity vulnerability in Totolink A3002r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-05-13.
How severe is CVE-2025-45858?: Critical severity. CVSS v3 base score is 9.8 out of 10.