---
title: "CVE-2016-20017: D-Link DSL-2750B Devices Command Injection Vulnerability"
url: https://erroneo.us/security/cve/CVE-2016-20017/
description: "CVE-2016-20017 (D-Link DSL-2750B Devices): Exploited in the wild (CISA KEV). D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command…"
type: vulnerability-record
section: "Security Digest"
date_published: 2022-10-19
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2016-20017"
kev: true
cvss: 9.8
epss: 0.66583
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2016-20017: D-Link DSL-2750B Devices Command Injection Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run D-Link DSL-2750B Devices. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-01-08, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-01-29 ; treat that as the outer limit, not the target.
- EPSS 66.6% , percentile 99: FIRST’s model estimates a 66.6% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

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.

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2024-01-08; federal due date 2024-01-29. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 66.58% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (supportannouncement.us.dlink.com)](https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10088)
- [CVE.org record CVE-2016-20017](https://www.cve.org/CVERecord?id=CVE-2016-20017)
- [NVD entry CVE-2016-20017](https://nvd.nist.gov/vuln/detail/CVE-2016-20017)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-20017)
- [seclists.org](https://seclists.org/fulldisclosure/2016/Feb/53)
- [exploit-db.com](https://www.exploit-db.com/exploits/44760)

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Source page: https://erroneo.us/security/cve/CVE-2016-20017/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt