CVE-2021-3707

D-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to unauthorized...

5.5 MediumPublic exploit

D-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to unauthorized configuration modification. An unauthenticated attacker on the local network may exploit this, with CVE-2021-3708, to execute any OS commands on the vulnerable device.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

1.54%Up 0.7 points since Aug 16, 2021

What each source reports

NVD Score used 5.5

Record: CVE-2021-3707
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-15
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-3707
Weakness: CWE-15
Updated: 2026-11-02

EUVDEUVD-2021-26990 No score

Record: EUVD-2021-26990
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q2w4-9m66-g5ff 5.5

D-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to unauthorized...

Record: GHSA-q2w4-9m66-g5ff
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	HadiMed/DSL-2750U-Full-chain	2021-05-29

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-3707 is a medium vulnerability (CVSS 5.5) in D-link Dsl-2750u, published August 16, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.54%, the 75th percentile. No source names a fixed version.