CVE-2026-5981: D-Link DIR-605L POST Request formAdvFirewall buffer overflow

Published Apr 9, 2026
·
Updated

A vulnerability has been found in D-Link DIR-605L 2.13B01. This affects the function formAdvFirewall of the file /goform/formAdvFirewall of the component POST Request Handler. Such manipulation of the argument curTime leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. 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·09:15 PM
Data Sourced
via MITRE·09:15 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-5981?

CVE-2026-5981 is classified as a buffer overflow vulnerability that can potentially lead to arbitrary code execution.

2

How do I fix CVE-2026-5981?

To mitigate CVE-2026-5981, you should update the D-Link DIR-605L firmware to version 2.13B02 or later.

3

What are the effects of exploiting CVE-2026-5981?

Exploitation of CVE-2026-5981 can allow attackers to execute arbitrary code on the affected D-Link DIR-605L router.

4

Which devices are affected by CVE-2026-5981?

CVE-2026-5981 affects the D-Link DIR-605L router running firmware version 2.13B01.

5

Is there a workaround for CVE-2026-5981?

Currently, the best mitigation for CVE-2026-5981 is to apply the firmware update provided by D-Link.

Contact

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