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Vulnerability record · CVE-2021-3708 · published 16 August 2021

CVE-2021-3708: Dlink dsl-2750u firmware os command injection vulnerability

Dlink · Dsl 2750u Firmware

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.

7.8 CVSS 3.1 High EPSS 25% · top 2.2% CWE-78 · OS command injection
7.8CVSS 3.1 base score, v2 7.2
25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/HadiMed/firmware-analysis/blob/main/DSL-2750U%20%28firmware%20version%201.6%29/README.md
https://jvn.jp/en/vu/JVNVU92088210/ Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10230 Vendor Advisory
https://github.com/HadiMed/firmware-analysis/blob/main/DSL-2750U%20%28firmware%20version%201.6%29/README.md
https://jvn.jp/en/vu/JVNVU92088210/ Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10230 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2019-1010155Dlink dsl-2750u firmware vulnerabilityD-Link DSL-2750U 1.11 is affected by: Authentication Bypass. The impact is: denial of service and information leakage. The component is: login. NOTE:…EPSS 8.6%7.8CVE-2020-13150Dlink dsl-2750u firmware missing authentication for critical function vulnerabilityD-link DSL-2750U ISL2750UEME3.V1E devices allow approximately 90 seconds of access to the control panel, after a restart, before MAC address filterin…EPSS 0.28%6.8CVE-2023-46033Dlink dsl-2730u firmware improper access control vulnerabilityD-Link (Non-US) DSL-2750U N300 ADSL2+ and (Non-US) DSL-2730U N150 ADSL2+ are vulnerable to Incorrect Access Control. The UART/Serial interface on the…EPSS 0.33%5.5CVE-2021-3707Dlink dsl-2750u firmware vulnerabilityD-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to unauthorized configuration modification. An unauthenticated attacker…EPSS 1.5%5.3CVE-2024-0717Dlink dir-825acg1 firmware information exposure vulnerabilityA vulnerability classified as critical was found in D-Link DAP-1360, DIR-300, DIR-615, DIR-615GF, DIR-615S, DIR-615T, DIR-620, DIR-620S, DIR-806A, DI…EPSS 18%5.1CVE-2024-9792Dlink dsl-2750u firmware cross-site scripting vulnerabilityA vulnerability classified as problematic has been found in D-Link DSL-2750U R5B017. This affects an unknown part of the component Port Forwarding Pa…EPSS 0.68%8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.65%analysed8.8CVE-2026-87491Google Chrome V8 out-of-bounds write enables sandbox code executionChrome before 153.0.8010.36 contains an out-of-bounds write in the V8 JavaScript engine. A crafted HTML page can trigger the memory corruption, and b…KEVEPSS 3.1%analysed

Source: NIST National Vulnerability Database (record CVE-2021-3708), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.