CVE-2025-45784: dph-400s Hardcoded Credentials

Description

D-Link DPH-400S/SE VoIP Phone v1.01 contains hardcoded provisioning variables, including PROVIS_USER_PASSWORD, which may expose sensitive user credentials. An attacker with access to the firmware image can extract these credentials using static analysis tools such as strings or xxd, potentially leading to unauthorized access to device functions or user accounts. This vulnerability exists due to insecure storage of sensitive information in the firmware binary.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-798 CWE-798

Affected Products

Vendor	Product	Versions
dlink	dph-400se_firmware	All
dlink	dph-400se	All
dlink	dph-400s_firmware	All
dlink	dph-400s	All

References

Advisories & Patches

https://www.dlink.com/en/security-bulletin/

Exploits

https://cybermaya.in/posts/Post-37/

Frequently Asked Questions

What is CVE-2025-45784? +

D-Link DPH-400S/SE VoIP Phone v1.01 contains hardcoded provisioning variables, including PROVIS_USER_PASSWORD, which may expose sensitive user credentials. An attacker with access to the firmware image can extract these credentials using static analysis tools such as strings or xxd, potentially leading to unauthorized access to device functions or user accounts. This vulnerability exists due to insecure storage of sensitive information in the firmware binary. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-45784? +

CVE-2025-45784 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-45784? +

CVE-2025-45784 affects products from dlink, specifically: dph-400s, dph-400s_firmware, dph-400se, dph-400se_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-45784? +

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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