What is CVE-2023-29803?

CVE-2023-29803 is a critical-severity vulnerability in Totolink X18, classified under Command Injection. CVSS score: 9.8/10. Published 2023-04-14.

How severe is CVE-2023-29803?

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

Is CVE-2023-29803 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Totolink X18

CVE-2023-29803

TOTOLINK X18 V9.1.0cu.2024_B20220329 was discovered to contain a command injection vulnerability via the pid parameter in the disconnectVPN function.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-04-14 · 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: 0.021 (81.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Totolink X18
Totolink X18 Firmware — versions 9.1.0cu.2024_b20220329

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

attilaszia/linux-iot-cves

References

sore-pail-31b.notion.site/Command-Inject-1-4a37b0679f69478285d1ba640e5f0897 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-29803?: CVE-2023-29803 is a critical-severity vulnerability in Totolink X18, classified under Command Injection. CVSS score: 9.8/10. Published 2023-04-14.
How severe is CVE-2023-29803?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-29803 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.