What is CVE-2023-52026?

CVE-2023-52026 is a critical-severity vulnerability in Totolink Ex1800t, classified under OS Command Injection. CVSS score: 9.8/10. Published 2024-01-12.

How severe is CVE-2023-52026?

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

RCE in Totolink Ex1800t

CVE-2023-52026

TOTOlink EX1800T V9.1.0cu.2112_B20220316 was discovered to contain a remote command execution (RCE) vulnerability via the telnet_enabled parameter of the setTelnetCfg interface

Vulnerability class: Command Injection (OS Command Injection)

Published 2024-01-12 · 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: 0.016 (75.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Totolink Ex1800t
Totolink Ex1800t Firmware — versions 9.1.0cu.2112_b20220316

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

815yang.github.io/2023/12/11/EX1800T/2/TOTOlinkEX1800T_V9.1.0cu.2112_B2022031se… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-52026?: CVE-2023-52026 is a critical-severity vulnerability in Totolink Ex1800t, classified under OS Command Injection. CVSS score: 9.8/10. Published 2024-01-12.
How severe is CVE-2023-52026?: Critical severity. CVSS v3 base score is 9.8 out of 10.