CVE-2026-5030

Name: CVE-2026-5030
Creator: NVD / NIST
Published: 2026-03-29T05:15:55.603+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 2.28%

Last modified Jun 17, 2026

CVE-2026-5030 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. EPSS estimates a 2.28% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument host_time leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/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

2.28%

80.9th 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-NTPSyncWithHost-32153a41781f8032afebc0802b704e9c?source=copy_linkExploit, Third Party Advisory
https://vuldb.com/submit/778529Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353952Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353952/ctiPermissions Required, VDB Entry
https://www.totolink.net/Product

Timeline

Published: Mar 29, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5030?

How severe is CVE-2026-5030?

CVE-2026-5030 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 2.28% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5030?

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-2026-5030?

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

Scan your code now

Source: NVD / NIST