CVE-2025-1877 D-Link DAP-1562 HTTP POST Request pure_auth_check null pointer dereference

High 7.1 Published Updated

Remote attackers can cause a denial of service via null pointer dereference in the HTTP POST handler of unsupported D-Link DAP-1562 devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-1877?

CVE-2025-1877 is a high-severity vulnerability in D-Link DAP-1562, published on 3 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, was found in D-Link DAP-1562 1.10. This affects the function pure_auth_check of the component HTTP POST Request Handler. The manipulation of the argument a1 leads to null pointer dereference. It is possible to initiate the attack 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.

Weakness: CWE-476, CWE-404

Which versions are affected by CVE-2025-1877?

It affects 1 product.

Products include Dlink Dap-1562 Firmware.

How do I fix CVE-2025-1877?

No fix has been published for CVE-2025-1877 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-1877 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1877 exists.

Sources

Also known as GHSA-rf73-69vr-qxgj.

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