CVE-2025-7909: dir-513 Buffer Overflow — Exploit

Description

A vulnerability was found in D-Link DIR-513 1.0. It has been rated as critical. Affected by this issue is the function sprintf of the file /goform/formLanSetupRouterSettings of the component Boa Webserver. The manipulation of the argument curTime leads to stack-based 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.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
dlink	dir-513_firmware	All
dlink	dir-513	All

References

Exploits

https://github.com/buobo/bo-s-CVE/blob/main/DIR-513/formLanSetupRouterSettings.md https://github.com/buobo/bo-s-CVE/blob/main/DIR-513/formLanSetupRouterSettings.md

Other References

https://vuldb.com/?ctiid.317024 https://vuldb.com/?id.317024 https://vuldb.com/?submit.618593 https://www.dlink.com/

Frequently Asked Questions

What is CVE-2025-7909? +

A vulnerability was found in D-Link DIR-513 1.0. It has been rated as critical. Affected by this issue is the function sprintf of the file /goform/formLanSetupRouterSettings of the component Boa Webserver. The manipulation of the argument curTime leads to stack-based 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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-7909? +

CVE-2025-7909 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-7909? +

CVE-2025-7909 affects products from dlink, specifically: dir-513, dir-513_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-7909? +

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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