PT-2026-3938 · Totolink · Totolink Nr1800X

Wxhwxhwxh · Published 2026-01-22 · Updated 2026-01-22 · CVE-2026-1327

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Totolink NR1800X version 9.1.0u.6279 B20210910

Description A security issue exists in Totolink NR1800X 9.1.0u.6279 B20210910. The issue is related to command injection within the setTracerouteCfg function located in the /cgi-bin/cstecgi.cgi file, specifically through the POST Request Handler component. Manipulation of the command argument allows for remote execution of commands. The exploit for this issue has been publicly disclosed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

CVE-2026-1327

Affected Products

Totolink Nr1800X

References · 10

• 🔥 https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setTracerouteCfg-2e453a41781f80df8ef9d32983758502?source=copy_link · Exploit
• https://osv.dev/vulnerability/CVE-2026-1327 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1327 · Security Note
• https://t.me/CVEtracker/42787 · Telegram Post
• https://twitter.com/CVEnew/status/2014339290055032961 · Twitter Post
• https://vuldb.com/?ctiid.342303 · Note
• https://totolink.net · Note
• https://vuldb.com/?submit.735790 · Note
• https://twitter.com/VulmonFeeds/status/2014386859233734852 · Twitter Post
• https://vuldb.com/?id.342303 · Note