What is CVE-2026-35499?

CVE-2026-35499 is a critical-severity vulnerability in Totolink, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-10-20.

How severe is CVE-2026-35499?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Totolink

CVE-2026-35499

An os command injection vulnerability exists in the boa formWsc peerRptPin functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-10-20 · last modified 2026-10-22.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (63.7th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Totolink — versions TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

talosintelligence.com/vulnerability_reports/TALOS-2026-2387

Frequently asked questions

What is CVE-2026-35499?: CVE-2026-35499 is a critical-severity vulnerability in Totolink, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-10-20.
How severe is CVE-2026-35499?: Critical severity. CVSS v3 base score is 9.1 out of 10.