CVE-2025-0492: dir-823x Null Dereference — Exploit

Description

A vulnerability has been found in D-Link DIR-823X 240126/240802 and classified as critical. Affected by this vulnerability is the function FUN_00412244. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-404 CWE-404

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
dlink	dir-823x_firmware	All
dlink	dir-823x_firmware	All
dlink	dir-823x	All

References

Exploits

https://tasty-foxtrot-3a8.notion.site/D-link-DIR-823X-FUN_00412244-NULL-Pointer-Dereference-1730448e619580fcb7f9d871c6e7190a

Other References

https://vuldb.com/?ctiid.291937 https://vuldb.com/?id.291937 https://vuldb.com/?submit.475301 https://www.dlink.com/

Frequently Asked Questions

What is CVE-2025-0492? +

A vulnerability has been found in D-Link DIR-823X 240126/240802 and classified as critical. Affected by this vulnerability is the function FUN_00412244. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-0492? +

CVE-2025-0492 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-0492? +

CVE-2025-0492 affects products from dlink, specifically: dir-823x, dir-823x_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-0492? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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