What is CVE-2025-44655?

CVE-2025-44655 is a critical-severity vulnerability in Totolink A7100ru, classified under Incorrect Privilege Assignment. CVSS score: 9.8/10. Published 2025-07-21.

How severe is CVE-2025-44655?

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

Privilege escalation in Totolink A7100ru

CVE-2025-44655

In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized access to system files, privilege escalation, or use of the compromised server as a pivot point for internal network attacks.

Published 2025-07-21 · last modified 2026-07-05.

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: 0.003 (24.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Totolink A7100ru
Totolink A7100ru Firmware — versions 7.4
Totolink A950rg
Totolink A950rg Firmware — versions 5.9
Totolink T10
Totolink T10 Firmware — versions 5.9

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

totolink.com (Broken Link)
gist.github.com/TPCchecker/d7306649f51ca25e22dd6532546a58f3 (Broken Link)

Frequently asked questions

What is CVE-2025-44655?: CVE-2025-44655 is a critical-severity vulnerability in Totolink A7100ru, classified under Incorrect Privilege Assignment. CVSS score: 9.8/10. Published 2025-07-21.
How severe is CVE-2025-44655?: Critical severity. CVSS v3 base score is 9.8 out of 10.