How severe is CVE-2016-20017?

CVE-2016-20017 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-20017 being actively exploited?

Yes. CVE-2016-20017 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-01-08, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2016-20017?

CVE-2016-20017 affects Dlink Dsl-2750b Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-20017?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2016-20017 have an EU (EUVD) identifier?

Yes. CVE-2016-20017 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-3105. It is also flagged as exploited in the EUVD (since 2024-01-08).

When was CVE-2016-20017 published?

CVE-2016-20017 was published on 2022-10-19 and last updated on 2026-06-17.

CVE-2016-20017

CVE-2016-20017 is a critical-severity vulnerability in Dlink Dsl-2750b Firmware with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2024-01-08). The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 60% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2024-01-08)
EU (EUVD) id: EUVD-2016-3105
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2024-01-08)
Weakness: CWE-77
Affected product: Dlink Dsl-2750b Firmware
Published: 2022-10-19
Last modified: 2026-06-17

Description

D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter, as exploited in the wild in 2016 through 2022.

Frequently asked questions

What is CVE-2016-20017?: D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter, as exploited in the wild in 2016 through 2022.
How severe is CVE-2016-20017?: CVE-2016-20017 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-20017 being actively exploited?: Yes. CVE-2016-20017 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-01-08, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2016-20017?: CVE-2016-20017 affects Dlink Dsl-2750b Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-20017?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2016-20017 have an EU (EUVD) identifier?: Yes. CVE-2016-20017 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-3105. It is also flagged as exploited in the EUVD (since 2024-01-08).
When was CVE-2016-20017 published?: CVE-2016-20017 was published on 2022-10-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dsl-2750b_firmware:*:*:*:*:*:*:*:*

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