CVE-2021-3708

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

7.8 High

D-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to OS command injection. An unauthenticated attacker on the local network may exploit this, with CVE-2021-3707, 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: High
Integrity: High
Availability: High

Exploit likelihood

24.6%Up 23.7 points since Aug 16, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2021-3708
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-78
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-3708
Weakness: CWE-78
Updated: 2026-11-02

EUVDEUVD-2021-26991 No score

Record: EUVD-2021-26991
Updated: 2026-11-03

GitHub AdvisoriesGHSA-37xh-hrqc-3q2v 7.8

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

Record: GHSA-37xh-hrqc-3q2v
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-78
Updated: 2026-11-02

Affected products

History

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

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

In short

CVE-2021-3708 is a high vulnerability (CVSS 7.8) in D-link Dsl-2750u, published August 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 24.6%, the 97th percentile. No source names a fixed version.