CVE-2026-1326

Name: CVE-2026-1326
Creator: NVD / NIST
Published: 2026-01-22T15:16:50.79+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 3.21%

Last modified Jun 17, 2026

CVE-2026-1326 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. EPSS estimates a 3.21% chance of exploitation in the next 30 days.

Description

A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

2.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

3.21%

86.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	Nr1800x Firmware	9.1.0u.6279_b20210910

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781f80b390f3e1ce0d9dd5b9?source=copy_linkExploit, Third Party Advisory
https://vuldb.com/?ctiid.342302Permissions Required, VDB Entry
https://vuldb.com/?id.342302Third Party Advisory, VDB Entry
https://vuldb.com/?submit.735787Third Party Advisory, VDB Entry
https://www.totolink.net/Product

Timeline

Published: Jan 22, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-1326?

How severe is CVE-2026-1326?

CVE-2026-1326 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 3.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1326?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-1326?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST