How severe is CVE-2018-1146?

CVE-2018-1146 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-1146 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1146?

CVE-2018-1146 affects Belkin N750 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1146?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1146 published?

CVE-2018-1146 was published on 2018-04-19 and last updated on 2026-06-17.

CVE-2018-1146

CVE-2018-1146 is a high-severity vulnerability in Belkin N750 Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 29% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 29% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Belkin N750 Firmware
Published: 2018-04-19
Last modified: 2026-06-17

Description

A remote unauthenticated user can enable telnet on the Belkin N750 using firmware version 1.10.22 by sending a crafted HTTP request to set.cgi. When enabled the telnet session requires no password and provides root access.

Frequently asked questions

What is CVE-2018-1146?: A remote unauthenticated user can enable telnet on the Belkin N750 using firmware version 1.10.22 by sending a crafted HTTP request to set.cgi. When enabled the telnet session requires no password and provides root access.
How severe is CVE-2018-1146?: CVE-2018-1146 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-1146 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1146?: CVE-2018-1146 affects Belkin N750 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1146?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1146 published?: CVE-2018-1146 was published on 2018-04-19 and last updated on 2026-06-17.

References

https://www.tenable.com/security/research/tra-2018-08

Affected products (1)

cpe:2.3:o:belkin:n750_firmware:1.10.22:*:*:*:*:*:*:*

More vulnerabilities in Belkin N750 Firmware

CVE-2013-7173 — Critical (CVSS 9.8): Belkin n750 routers have a buffer overflow.
CVE-2018-1145 — Critical (CVSS 9.8): A remote unauthenticated user can overflow a stack buffer in the Belkin N750 using firmware version 1.10.22 by sending…
CVE-2018-1144 — Critical (CVSS 9.8): A remote unauthenticated user can execute commands as root in the Belkin N750 using firmware version 1.10.22 by sending…
CVE-2018-1143 — Critical (CVSS 9.8): A remote unauthenticated user can execute commands as root in the Belkin N750 using firmware version 1.10.22 by sending…

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