CVE-2026-5983: D-Link DIR-605L POST Request formSetDDNS buffer overflow

Published Apr 9, 2026
·
Updated

A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

Affected Software

3 affected components
D-Link DIR-605L=2.13B01
All of the following
Dlink Dir-605l Firmware=2.13b01
Dlink Dir-605l

Event History

Apr 9, 2026
CVE Published
via MITRE·09:45 PM
Data Sourced
via MITRE·09:45 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-5983?

CVE-2026-5983 is classified as a high-severity vulnerability due to its potential for remote code execution.

2

How do I fix CVE-2026-5983?

To mitigate CVE-2026-5983, update the D-Link DIR-605L firmware to the latest version provided by D-Link.

3

What are the impacts of CVE-2026-5983?

CVE-2026-5983 can allow an attacker to exploit a buffer overflow, potentially leading to denial of service or unauthorized access.

4

Which devices are affected by CVE-2026-5983?

The D-Link DIR-605L with firmware version 2.13B01 is specifically affected by CVE-2026-5983.

5

How does CVE-2026-5983 exploit the D-Link DIR-605L?

CVE-2026-5983 exploits the formSetDDNS function within a POST request that manipulates the curTime argument, triggering a buffer overflow.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203